The Spring,helical,extension, cataloged under National Stock Number 5360-01-042-4192, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 15 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 | 5360-01-042-4192 |
| Primary Part Number | 6264221 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| End Style | DOBBY HOOK FIRST END |
| End Style | SHORT LOOP SECOND END |
| Design Type | OPEN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-474,COMP C,D,E,OR F-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 4.250 INCHES MAXIMUM IN |
| Spring Deflection Rate | 20.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Distance Between Ends | 4.656 INCHES NOMINAL IN |
| Coil Quantity | 39 |
| Surface Treatment | ENAMEL OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.125 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 |
| Part Number | Manufacturer |
|---|---|
| 6264221 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5360-01-042-4192 is a Spring,helical,extension, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-042-4192 has 1 manufacturer part number on file: 6264221 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 6264221: Spring Free Outside Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; End Style: DOBBY HOOK FIRST END; End Style: SHORT LOOP SECOND END; Design Type: OPEN. 15 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.