400 series02

This standard size is defined by Aerospace Standard AS568A, as cross-sectional diameter (or series) “400”. This standard size, also used for most military specifications, is nominally 1/4”

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Size
Number

Cross
Section

Inside
Diameter

Package
Quantity

425

1/4”

4-1/2”

1

426

1/4”

4-5/8”

1

427

1/4”

4-3/4”

1

428

1/4”

4-7/8”

1

429

1/4”

5”

1

430

1/4”

5-1/8”

1

431

1/4”

5-1/4”

1

432

1/4”

5-3/8”

1

433

1/4”

5-1/2”

1

434

1/4”

5-5/8”

1

435

1/4”

5-3/4”

1

436

1/4”

5-7/8”

1

437

1/4”

6”

1

438

1/4”

6-1/4”

1

439

1/4”

6-1/2”

1

440

1/4”

6-3/4”

1

441

1/4”

7”

1

442

1/4”

7-1/4”

1

443

1/4”

7-1/2”

1

444

1/4”

7-3/4”

1

445

1/4”

8”

1

446

1/4”

8-1/2”

1

447

1/4”

9”

1

448

1/4”

9-1/2”

1

449

1/4”

10”

1

450

1/4”

10-1/2”

1

451

1/4”

11”

1

452

1/4”

11-1/2”

1

453

1/4”

12”

1

454

1/4”

12-1/2”

1

455

1/4”

13”

1

456

1/4”

13-1/2”

1

457

1/4”

14”

1

458

1/4”

14-1/2”

1

459

1/4”

15”

1

460

1/4”

15-1/2”

1

461

1/4”

16”

1

462

1/4”

16-1/2”

1

463

1/4”

17”

1

464

1/4”

17-1/2”

1

465

1/4”

18”

1

466

1/4”

18-1/2”

1

467

1/4”

19”

1

468

1/4”

19-1/2

1

469

1/4”

20”

1

470

1/4”

21”

1

471

1/4”

22”

1

472

1/4”

23”

1

473

1/4”

24”

1

474

1/4”

25”

1

475

1/4”

26”

1
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#425 - #434 PTFE O-ring in Packages of 1 Each

1 Pack

#435 - #444 PTFE O-ring in Packages of 1 Each

1 Pack

#445 - #454 PTFE O-ring in Packages of 1 Each

1 Pack

#455 - #464 PTFE O-ring in Packages of 1 Each

1 Pack

#465 - #470 PTFE O-ring in Packages of 1 Each

1 Pack

#471 - #475 PTFE O-ring in Packages of 1 Each

1 Pack
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