The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-272-6839, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Singer Data Products. 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.
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Singer Data Products (CAGE 48440) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-272-6839 |
| Primary Part Number | 55058 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Singer Data Products |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 55058 PRIMARY | Singer Data Products (USA) |
NSN 5340-01-272-6839 is a Seat,helical Compression Spring, manufactured by Singer Data Products, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-272-6839 has 1 manufacturer part number on file: 55058 (Singer Data Products).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-332-1736. Verify interchangeability with system specifications before substitution.
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.