The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-341-8977, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 9 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.
| Parameter | Value |
|---|---|
| NSN | 5340-00-341-8977 |
| Primary Part Number | 7219198 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| First Step Diameter | 4.5000 INCHES NOMINAL IN |
| End Diameter | 1.7810 INCHES NOMINAL IN |
| Distance From End to First Step | 0.4690 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Counterbore Length | 0.2810 INCHES NOMINAL IN |
| Counterbore Diameter | 4.0000 INCHES NOMINAL IN |
| Bore Diameter | 1.3750 INCHES MINIMUM AND 1.3770 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7219198 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5340-00-341-8977 is a Seat,helical Compression Spring, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-341-8977 has 1 manufacturer part number on file: 7219198 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 7219198: Overall Height: 1.0630 INCHES NOMINAL IN; First Step Diameter: 4.5000 INCHES NOMINAL IN; End Diameter: 1.7810 INCHES NOMINAL IN; Distance From End to First Step: 0.4690 INCHES NOMINAL IN. 9 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.
NSN 5340-00-341-8977 has DEMIL Code C. Demilitarization may be required before disposal or transfer to non-military entities.
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.