The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-137-7003, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-137-7003 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| First Step Diameter | 0.8120 INCHES NOMINAL IN |
| End Diameter | 0.6250 INCHES NOMINAL IN |
| Distance From End to First Step | 0.1880 INCHES NOMINAL IN |
| Design Type | SOLID |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE |
| Second Step Diameter | 1.1250 INCHES NOMINAL IN |
| First Step Length | 0.0620 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| 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 |
| Reference | Meaning |
|---|---|
| 460017 | 3/9 Design control — primary reference Prince Alexander Partners Inc Div Architecture Engieering and Economic Development |
NSN 5340-01-137-7003 is a Seat,helical Compression Spring, classified under FSC 5340, Hardware, Commercial. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 6910-01-188-9858, 5310-01-470-7397, 5305-01-572-8150. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-137-7003: Overall Height: 0.3120 INCHES NOMINAL IN; First Step Diameter: 0.8120 INCHES NOMINAL IN; End Diameter: 0.6250 INCHES NOMINAL IN; Distance From End to First Step: 0.1880 INCHES NOMINAL IN. 8 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.