The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-374-0122, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-374-0122 |
| Primary Part Number | 4B8326 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Flange Diameter | 2.000 INCHES NOMINAL IN |
| Flange Thickness | 0.125 INCHES NOMINAL IN |
| Body Outside Diameter | 1.401 INCHES MINIMUM AND 1.411 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Body Inside Diameter | 1.288 INCHES MINIMUM AND 1.293 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | ZINC |
| Material | STEEL |
| Inside Chamfer Angle in Deg | 30.0 |
| End Hole Diameter | 1.151 INCHES MINIMUM AND 1.161 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4B8326 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| H8020 | 5/9 Secondary reference American Standard Inc Westinghouse Air Brake Co Div |
| 37670 | 5/9 Secondary reference Bendix Corp the Brake and Steering Div |
NSN 5340-00-374-0122 is a Retainer,helical Compression Spr, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-374-0122 has 1 manufacturer part number on file: 4B8326 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4B8326: Flange Diameter: 2.000 INCHES NOMINAL IN; Overall Height: 0.312 INCHES NOMINAL IN; Flange Thickness: 0.125 INCHES NOMINAL IN; Body Outside Diameter: 1.401 INCHES MINIMUM AND 1.411 INCHES MAXIMUM IN. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.