301 GB/T 3103.2-1982 緊固件公差 用于精密機械的螺栓、螺釘和螺母 Tolerances for fasteners？Bolts， screws and nuts for fine mechanics

302 GB/T 3103.3-1982 緊固件公差 平墊圈 Tolerances for fasteners？Washers

303 GB/T 3103.4-1992 緊固件公差 耐熱用螺紋連接副 Tolerances for fasteners？Components for bolted connections made mainly from materials with a high temperature strength

304 GB/T 3104-1982 緊固件 六角產品的對邊寬度 Fasteners？Widths across flats of hexagon products

305 GB/T 3105-1982 螺栓和螺釘的頭下圓角半徑 Radii under the head of bolts and screws

306 GB/T 3106-1982 螺栓、螺釘和螺柱的公稱長度和普通螺栓的螺紋長度 Bolts， screws and studs？Nominal lengths， and thread lengths for general purpose bolts

307 GB/T 3162-1991 滑動軸承薄壁軸瓦尺寸、結構要素與公差 Plain bearings—Thin-walled bearing shells—Dimensions， structure elements and tolerances

308 GB/T 3287-1982 可鍛鑄鐵管路連接件技術條件 Technical requirements of malleable cast iron pipe fittings

309 GB/T 3288-1982 可鍛鑄鐵管路連接件驗收規則 Delivery requirements of malleable cast iron pipe fittings

310 GB/T 3289.1-1982 可鍛鑄鐵管路連接件型式尺寸 管件結構尺寸表 Malleable cast iron pipe fittings？Type size？Dimensions list of pipe fittings structure

311 GB/T 3289.2-1982 可鍛鑄鐵管路連接件型式尺寸 彎頭 內外絲彎頭 Malleable cast iron pipe fittings？Type size？Elbows male and female elbows

312 GB/T 3289.3-1982 可鍛鑄鐵管路連接件型式尺寸 45°彎頭 45°內外絲彎頭 Malleable cast iron pipe fittings？Type size？Elbows 45°， male and female elbows 45°

313 GB/T 3289.4-1982 可鍛鑄鐵管路連接件型式尺寸 異徑彎頭 Malleable cast iron pipe fittings？Type size？Reducing elbows

314 GB/T 3289.5-1982 可鍛鑄鐵管路連接件型式尺寸 異徑內外絲彎頭 Malleable cast iron pipe fittings？Type size？Male and female reducing elbows

315 GB/T 3289.6-1982 可鍛鑄鐵管路連接件型式尺寸 側孔彎頭 Malleable cast iron pipe fittings？Type size？Side outlet elbows

316 GB/T 3289.7-1982 可鍛鑄鐵管路連接件型式尺寸 月彎 內外絲月彎 外絲月彎 Malleable cast iron pipe fittings？Type size？Return bends， male and female return bends， thread return bends

317 GB/T 3289.8-1982 可鍛鑄鐵管路連接件型式尺寸 45°月彎45°內外絲月彎45°外絲月彎 Malleable cast iron pipe fittings？Type size？Long sweep bends 45°，male and female long sweep bends 45°，male long sweep bends 45°

318 GB/T 3289.9-1982 可鍛鑄鐵管路連接件型式尺寸 U型彎頭 Malleable cast iron pipe fittings？Type size？U-Elbows(return bends)

319 GB/T 3289.10-1982 可鍛鑄鐵管路連接件型式尺寸 三通 內外絲三通 Malleable cast iron pipe fittings？Type size？Tees， male and female tees

320 GB/T 3289.11-1982 可鍛鑄鐵管路連接件型式尺寸 異徑內外絲三通 Malleable cast iron pipe fittings？Type size？Male and female reducing tees

321 GB/T 3289.12-1982 可鍛鑄鐵管路連接件型式尺寸 中大異徑三通 Malleable cast iron pipe fittings？Type size？Medium-large reducing tees [tees(increasing on the branch)]

322 GB/T 3289.13-1982 可鍛鑄鐵管路連接件型式尺寸 側大異徑三通 Malleable cast iron pipe fittings？Type size？Lateral-large reducing tees

323 GB/T 3289.14-1982 可鍛鑄鐵管路連接件型式尺寸 中小異徑三通 Malleable cast iron pipe fittings？Type size？Medium-less reducing tees

324 GB/T 3289.15-1982 可鍛鑄鐵管路連接件型式尺寸 側小異徑三通 Malleable cast iron pipe fittings？Type size？Lateral-less reducing tees

325 GB/T 3289.16-1982 可鍛鑄鐵管路連接件型式尺寸 中小偏心異徑三通 Malleable cast iron pipe fittings？Type size？Medium-less eccentric reducing tees

326 GB/T 3289.17-1982 可鍛鑄鐵管路連接件型式尺寸 45°三通 Y型三通 Malleable cast iron pipe fittings？Type size？Tees45°， Y pieces(tees)

327 GB/T 3289.18-1982 可鍛鑄鐵管路連接件型式尺寸 Y型異徑三通 Malleable cast iron pipe fittings？Type size？Y Piece reducing(tees)

328 GB/T 3289.19-1982 可鍛鑄鐵管路連接件型式尺寸 側孔三通 Malleable cast iron pipe fittings？Type size？Side outlet tees

329 GB/T 3289.20-1982 可鍛鑄鐵管路連接件型式尺寸 四通 Malleable cast iron pipe fittings？Type size？Crosses

330 GB/T 3289.21-1982 可鍛鑄鐵管路連接件型式尺寸 異徑四通 Malleable cast iron pipe fittings？Type size？Reducing crosses

331 GB/T 3289.22-1982 可鍛鑄鐵管路連接件型式尺寸 外接頭 內外絲接頭 Malleable cast iron pipe fittings？Type size？Male joints(sockets)， male and female joints (sockets)

332 GB/T 3289.23-1982 可鍛鑄鐵管路連接件型式尺寸 無方內接頭 Malleable cast iron pipe fittings？Type size？No-square inner joint (nipples)

333 GB/T 3289.24-1982 可鍛鑄鐵管路連接件型式尺寸 異徑外接頭 Malleable cast iron pipe fittings？Type size？Reducing male joints (sockets)

334 GB/T 3289.25-1982 可鍛鑄鐵管路連接件型式尺寸 偏心異徑外接頭 Malleable cast iron pipe fittings？Type size？Eccentric reducing male joints (sockets)

335 GB/T 3289.26-1982 可鍛鑄鐵管路連接件型式尺寸 內接頭 Malleable cast iron pipe fittings？Type size？Inner joints (nipples hexagon)

336 GB/T 3289.27-1982 可鍛鑄鐵管路連接件型式尺寸 異徑內接頭 Malleable cast iron pipe fittings？Type size？Reducing inner joints(nipples hexagon)

337 GB/T 3289.28-1982 可鍛鑄鐵管路連接件型式尺寸 內外螺絲 Malleable cast iron pipe fittings？Type size？Male and female screws (bushings)

338 GB/T 3289.29-1982 可鍛鑄鐵管路連接件型式尺寸 通絲外接頭 Malleable cast iron pipe fittings？Type size？Through thread male joint (sockets)

339 GB/T 3289.30-1982 可鍛鑄鐵管路連接件型式尺寸 鎖緊螺母 Malleable cast iron pipe fittings？Type size？Backnuts

340 GB/T 3289.31-1982 可鍛鑄鐵管路連接件型式尺寸 外方管堵 Malleable cast iron pipe fittings？Type size？Outer-square plugs

341 GB/T 3289.32-1982 可鍛鑄鐵管路連接件型式尺寸 帶邊外方管堵 Malleable cast iron pipe fittings？Type size？Outer-square beaded plugs

342 GB/T 3289.33-1982 可鍛鑄鐵管路連接件型式尺寸 內方管堵 Malleable cast iron pipe fittings？Type size？Inner-square plugs

343 GB/T 3289.34-1982 可鍛鑄鐵管路連接件型式尺寸 管帽 Malleable cast iron pipe fittings？Type size？Tube caps (caps plugs)

344 GB/T 3289.35-1982 可鍛鑄鐵管路連接件型式尺寸 活接彎頭 內外絲活接彎頭 Malleable cast iron pipe fittings？Type size？Union elbows， male and female union elbows

345 GB/T 3289.36-1982 可鍛鑄鐵管路連接件型式尺寸 活接三通 Malleable cast iron pipe fittings？Type size？Union tees

346 GB/T 3289.37-1982 可鍛鑄鐵管路連接件型式尺寸 平形活接頭 Malleable cast iron pipe fittings？Type size？Parallel unions

347 GB/T 3289.38-1982 可鍛鑄鐵管路連接件型式尺寸 錐形活接頭 Malleable cast iron pipe fittings？Type size？Taper unions

348 GB/T 3289.39-1982 可鍛鑄鐵管路連接件型式尺寸 平形活接頭墊圈 Malleable cast iron pipe fittings？Type size？Parallel union gaskets

349 GB/T 3374-1992 齒輪基本術語 Basic terminology of gears

350 GB/T 3478.1-1995 圓柱直齒漸開線花鍵模數 基本齒廓 公差 Straight cylindrical involute splines？Modules， basic rack profiles and tolerances

351 GB/T 3478.2-1995 圓柱直齒漸開線花鍵 30°壓力角 尺寸表 Straight cylindrical involute splines？30°pressure angle dimenslons tables

352 GB/T 3478.3-1995 圓柱直齒漸開線花鍵 37.5°壓力角 尺寸表 Straight cylindrical involute splines？37.5°pressure angle dimensions tables

353 GB/T 3478.4-1995 圓柱直齒漸開線花鍵 45°壓力角 尺寸表 Straight cylindrical involute splines？45°pressure angle dimensions tables

354 GB/T 3478.5-1995 圓柱直齒漸開線花鍵 檢驗方法 Straight cylindrical involute splines？Inspection methods

355 GB/T 3478.6-1995 圓柱直齒漸開線花鍵 30°壓力角 M值和W值 Straight cylindrical involute splines？30°pressurengle M and W values

356 GB/T 3478.7-1995 圓柱直齒漸開線花鍵 37.5°壓力角 M值和W值 Straight cylindrical involute splines？37.5°pressure angle M and W values

357 GB/T 3478.8-1995 圓柱直齒漸開線花鍵 45°壓力角 M值和W值 Straight cylindrical involute splines？45°pressure angle-M and W values

358 GB/T 3478.9-1995 圓柱直齒漸開線花鍵 量棒 Straight cylindrical involute splines？Measuring pin

359 GB/T 3507-1983 機械式聯軸器公稱扭矩系列 Nominal torque series of the mechanical coupling

360 GB/T 3632-1995 鋼結構用扭剪型高強度螺栓連接副 Sets of torshear type high strength bolt hexagon nut and plain washer for steel structures

361 GB/T 3633-1995 鋼結構用扭剪型高強度螺栓連接副 技術條件 Technical requirement for sets of torshear type high strength bolt hexagon nut and plain washer for steel structures

362 GB/T 3733.1-1983 卡套式端直通管接頭 Straight thread connector？Assembly

363 GB/T 3733.2-1983 卡套式端直通接頭體 Straight thread connector？Body

364 GB/T 3734.1-1983 卡套式錐螺紋直通管接頭 Male connector？Assembly

365 GB/T 3734.2-1983 卡套式錐螺紋直通接頭體 Male connector？Body

366 GB/T 3735.1-1983 卡套式端直通長管接頭 Straight thread long connector？Assembly

367 GB/T 3735.2-1983 卡套式端直通長接頭體 Straight thread long connector？Body

368 GB/T 3736.1-1983 卡套式錐螺紋長管接頭 Male long connector？Assembly

369 GB/T 3736.2-1983 卡套式錐螺紋長接頭體 Male long connector？Body

370 GB/T 3737.1-1983 卡套式直通管接頭 Union？Assembly

371 GB/T 3737.2-1983 卡套式直通接頭體 Union？Body

372 GB/T 3738.1-1983 卡套式端直角管接頭 Straight thread elbow？Assembly

373 GB/T 3738.2-1983 卡套式端直角接頭體 Straight thread elbow？Body

374 GB/T 3739.1-1983 卡套式錐螺紋直角管接頭 Male elbow？Assembly

375 GB/T 3739.2-1983 卡套式錐螺紋直角接頭體 Male elbow？Body

376 GB/T 3740.1-1983 卡套式直角管接頭 Union elbow？Assembly

377 GB/T 3740.2-1983 卡套式直角接頭體 Union elbow？Body

378 GB/T 3741.1-1983 卡套式端三通管接頭 Straight thread branch tee？Assembly

379 GB/T 3741.2-1983 卡套式端三通接頭體 Straight thread branch tee？Body

380 GB/T 3742.1-1983 卡套式錐螺紋三通管接頭 Male branch tee-Assembly

381 GB/T 3742.2-1983 卡套式錐螺紋三通接頭體 Male branch tee？body

382 GB/T 3743.1-1983 卡套式端直角三通管接頭 Straight thread run tee？Assembly

383 GB/T 3743.2-1983 卡套式端直角三通接頭體 Straight thread run tee？Body

384 GB/T 3744.1-1983 卡套式錐螺紋直角三通管接頭 Male run tee？Assembly

385 GB/T 3744.2-1983 卡套式錐螺紋直角三通接頭體 Male run tee？Body

386 GB/T 3745.1-1983 卡套式三通管接頭 Union tee？Assembly

387 GB/T 3745.2-1983 卡套式三通接頭體 Union tee？Body

388 GB/T 3746.1-1983 卡套式四通管接頭 Union cross-Assembly

389 GB/T 3746.2-1983 卡套式四通接頭體 Union cross？Body

390 GB/T 3747.1-1983 卡套式焊接管接頭 Weld male connector-Assembly

391 GB/T 3747.2-1983 卡套式焊接接頭體 Weld male connector？Body

392 GB/T 3748.1-1983 卡套式隔壁直通管接頭 Bulkhead union？Assmbly

393 GB/T 3748.2-1983 卡套式隔壁直通接頭體 Bulkhead union？Body

394 GB/T 3749.1-1983 卡套式隔壁直角管接頭 Bulkhead union elbow？Assembly

395 GB/T 3749.2-1983 卡套式隔壁直角接頭體 Bulkhead union elbow？Body

396 GB/T 3750.1-1983 卡套式鉸接管接頭 Angle swivel screw？Assembly

397 GB/T 3750.2-1983 卡套式鉸接接頭體 Angle swivel screw？Body

398 GB/T 3750.3-1983 卡套式鉸接六角螺栓 Hollow screws

399 GB/T 3751.1-1983 卡套式壓力表管接頭 Connector for pressure gauge？Assembly

400 GB/T 3751.2-1983 卡套式壓力表接頭體 Connector for pressure gauge-Boby

401 GB/T 3752.1-1983 卡套式組合直角管接頭 Adjustable elbow？Assembly

402 GB/T 3752.2-1983 卡套式組合直角接頭體 Adjustable elbow？Body

403 GB/T 3753.1-1983 卡套式組合三通管接頭 Adjustable T-unions？Assembly

404 GB/T 3753.2-1983 卡套式組合三通接頭體 Adjustable T-unions？Body

405 GB/T 3754.1-1983 卡套式端對接直通管接頭 Straight thread connector for butt joints？Assembly

406 GB/T 3754.2-1983 卡套式端對接直通接頭體 Straight thread connector for butt joints？Body

407 GB/T 3755.1-1983 卡套式錐螺紋對接直通管接頭 Male connector for butt joints？Assembly

408 GB/T 3755.2-1983 卡套式錐螺紋對接直通接頭體 Male connector for butt joints？Body

409 GB/T 3756.1-1983 卡套式對接直通管接頭 Union for butt joints？Assembly

410 GB/T 3756.2-1983 卡套式對接直通接頭體 Union for butt joints？Body

411 GB/T 3757.1-1983 卡套式端對接直角管接頭 Straight thread elbow for butt joints？Assembly

412 GB/T 3757.2-1983 卡套式端對接直角接頭體 Straight thread elbow for butt joints？Body

413 GB/T 3758.1-1983 卡套式錐螺紋對接直角管接頭 Male elbow for butt joints？Assembly

414 GB/T 3758.2-1983 卡套式錐螺紋對接直角接頭體 Male elbow for butt joints？Body

415 GB/T 3759-1983 卡套式管接頭用螺母 Bite type tube fittings？Nuts

416 GB/T 3760-1983 卡套式管接頭用對接螺母 Bite type tube fittings？Nuts for butt joints

417 GB/T 3761-1983 卡套式管接頭用錐體環 Bite type tube fittings？Pressure bush for butt joints

418 GB/T 3762-1983 卡套式管接頭用尖角密封墊圈 Bite type tube fittings？Tipping washer

419 GB/T 3763-1983 卡套式管接頭用六角薄螺母 Bite type tube fittings？Hexagon thin nuts

420 GB/T 3764-1983 卡套 Ferrule

421 GB/T 3765-1983 卡套式管接頭技術條件 Specification for bite type tube fittings

422 GB/T 3832.1-1983 拉刀矩形柄 型式和基本尺寸 Rectangular shanks for broaches？Types and main dimensions 423 GB/T 3832.2-1983 拉刀圓柱形前柄型式和基本尺寸 Round shanks for broaches？Types and main dimensions

424 GB/T 3832.3-1983 拉刀圓柱形后柄型式和基本尺寸 Round follower end for broaches？Types and main dimensions

425 GB/T 3858-1993 液力傳動術語 Hydrodynamic drive terminology

426 GB/T 3882-1995 滾動軸承 外球面球軸承和偏心套外形尺寸 Rolling bearings？Insert bearings and eccentric looking collars ？Boundary dimensions

427 GB/T 3944-1983 關節軸承 詞匯 Spherical plain bearing，joint type？Vocabulary

428 GB/T 4140-1993 輸送用平頂鏈和鏈輪 Flat-top chains and associated chainwheels for conveyors

429 GB/T 4199-1984 滾動軸承公差定義 Rolling bearings？Tolerances-definitions

430 GB/T 4222-1991 桿端關節軸承 外形尺寸和公差 Spherical plain bearing rod ends—Boundary dimensions and tolerances

431 GB/T 4323-1984 彈性套柱銷聯軸器 Pin coupling with elastic sleeve

432 GB/T 4603-1984 滾針軸承 重系列 尺寸和公差 Needle roller bearings？Heavy series？Dimensions and tolerances

433 GB/T 4604-1993 滾動軸承 徑向游隙 Rolling bearings？Radial internal clearance

434 GB/T 4646-1991 GEC...FSA 型自潤滑向心關節軸承外形尺寸 GEC...FSA type maintenance-free spherical plain radia lbearings， joint type—Boundary dimensions

435 GB/T 4648-1996 滾動軸承 圓錐滾子軸承 凸緣外圈 外形尺寸 Rolling bearings？Metric tapered roller bearings？Flanged cups？Boundary dimensions

436 GB/T 4661-1989 滾動軸承 圓柱滾子 Rolling bearings-cylindrical rollers

437 GB/T 4662-1993 滾動軸承 額定靜負荷 Rolling bearings？Static load ratings

438 GB/T 4663-1994 滾動軸承 推力圓柱滾子軸承 外形尺寸 Rolling bearings？Cylindrical thrust roller bearings？Boundary dimensions

439 GB/T 4982-1985 夾緊型真空快卸法蘭 Vacuum technology clamped type quick release flange

440 GB/T 5014-1985 彈性柱銷聯軸器 Elastic pin coupling

441 GB/T 5015-1985 彈性柱銷齒式聯軸器 Gear coupling with elastic pin

442 GB/T 5267-1985 螺紋緊固件電鍍層 Electroplated coatings on threaded fasteners

443 GB/T 5269-1985 傳動及輸送用雙節距精密滾子鏈和鏈輪 Double pitch precision roller chains and chain wheels for transmission and conveyors

444 GB/T 5272-1985 梅花形彈性聯軸器 Coupling with elastic spider

445 GB/T 5276-1985 緊固件 螺栓、螺釘、螺柱及螺母尺寸代號和標注 Fasteners？Bolts，screws，studs and nuts？Symbols and designations of dimensions

446 GB/T 5277-1985 緊固件 螺栓和螺釘通孔 Fasteners？Clearance holes for bolts and screws

447 GB/T 5278-1985 緊固件 開口銷孔和金屬絲孔 Fasteners？Split pin holes and wireholes

448 GB/T 5279-1985 沉頭螺釘 頭部形狀和測量 Countersunk head screws？Head configuration and gauging

449 GB/T 5280-1985 自攻螺釘用螺紋 Tapping screws thread

450 GB/T 5281-1985 內六角圓柱頭軸肩螺釘 Hexagon socket head shoulder screws