The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-074-3526, 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-074-3526 |
| Primary Part Number | 7M9628 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| First Step Diameter | 1.5000 INCHES NOMINAL IN |
| End Diameter | 1.0750 INCHES MINIMUM AND 1.0850 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.3750 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | 1E303, FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE |
| Counterbore Diameter | 0.5800 INCHES NOMINAL IN |
| Bore Taper in Deg | 7.0 |
| Bore Diameter | 0.5320 INCHES MINIMUM AND 0.5340 INCHES MAXIMUM IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 7M9628 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5340-00-074-3526 is a Seat,helical Compression Spring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-074-3526 has 1 manufacturer part number on file: 7M9628 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 7M9628: Overall Height: 0.5550 INCHES NOMINAL IN; First Step Diameter: 1.5000 INCHES NOMINAL IN; End Diameter: 1.0750 INCHES MINIMUM AND 1.0850 INCHES MAXIMUM IN; Distance From End to First Step: 0.3750 INCHES NOMINAL 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.