The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-476-5624, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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 | 5340-01-476-5624 |
| Primary Part Number | 124-4322620 PC 9-82 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| First Step Diameter | 8.8750 INCHES NOMINAL IN |
| End Diameter | 7.0000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-Z-325, TYPE 2, CLASS 2 FED SPEC 2ND TREATMENT RESPONSE |
| Distance From End to First Step | 0.7500 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | MIL-S-22698, CLASS B MIL SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ZINC OR ZINC AND CHROMATE |
| Bore Diameter | 0.8125 INCHES NOMINAL IN |
| Material | STEEL UNS K02102 |
| 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 |
|---|---|
| 124-4322620 PC 9-82 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5340-01-476-5624 is a Seat,helical Compression Spring, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-476-5624 has 1 manufacturer part number on file: 124-4322620 PC 9-82 (Naval Sea Systems Command).
Key specifications for 124-4322620 PC 9-82: Overall Height: 1.2500 INCHES NOMINAL IN; First Step Diameter: 8.8750 INCHES NOMINAL IN; End Diameter: 7.0000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-Z-325, TYPE 2, CLASS 2 FED SPEC 2ND TREATMENT RESPONSE. 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.