The Spring,helical,extension, cataloged under National Stock Number 5360-01-322-6101, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-322-6101 |
| Primary Part Number | GS581B009 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.617 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 1 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | ASTM A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.129 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN |
| Spring Deflection Rate | 13.090 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.562 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.562 INCHES NOMINAL IN |
| Spring Length Under Load | 3.311 INCHES NOMINAL IN |
| Coil Quantity | 16 |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| Hook Radius | 0.281 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5360-01-322-6101 is a Spring,helical,extension, manufactured by Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-322-6101 has 2 manufacturer part numbers on file: GS581B009 (Northrop Grumman Systems Corporation), GS581B009 (Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp).
Key specifications for GS581B009: Spring Free Outside Diameter: 0.617 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 1 FED SPEC ALL TREATMENT RESPONSES OVERALL; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.