The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-708-8322, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Cummins Inc.. Government technical data includes 7 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-708-8322 |
| Primary Part Number | 105987 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| First Step Diameter | 1.3750 INCHES NOMINAL IN |
| End Diameter | 1.0000 INCHES NOMINAL IN |
| Distance From End to First Step | 0.2188 INCHES NOMINAL IN |
| Counterbore Length | 0.2188 INCHES NOMINAL IN |
| Counterbore Diameter | 0.9375 INCHES NOMINAL IN |
| Bore Diameter | 0.6562 INCHES NOMINAL 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 |
| Part Number | Manufacturer |
|---|---|
| 105987 PRIMARY | Cummins Inc. (USA) |
NSN 5340-00-708-8322 is a Seat,helical Compression Spring, manufactured by Cummins Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-708-8322 has 1 manufacturer part number on file: 105987 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5826-01-037-3850. Verify interchangeability with system specifications before substitution.
Key specifications for 105987: Overall Height: 0.2500 INCHES NOMINAL IN; First Step Diameter: 1.3750 INCHES NOMINAL IN; End Diameter: 1.0000 INCHES NOMINAL IN; Distance From End to First Step: 0.2188 INCHES NOMINAL IN. 7 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.