The Spring,helical,extension, cataloged under National Stock Number 5360-01-407-4782, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-407-4782 |
| Primary Part Number | 12448500 |
| 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 | 1.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | TT-C-490 FED STD SINGLE TREATMENT RESPONSE OVERALL |
| End Style | RAISED HOOK FIRST END |
| End Style | CONED HOOK SECOND END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.190 INCHES NOMINAL FIRST END IN |
| Material Document and Classification | ASTM-A-228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 6.500 INCHES NOMINAL IN |
| Spring Deflection Rate | 10.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.789 INCHES NOMINAL IN |
| Stock Diameter | 0.105 INCHES NOMINAL IN |
| Coil Quantity | 26 |
| Surface Treatment | ZINC OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.250 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.250 INCHES NOMINAL SECOND END 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 5360-01-407-4782 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 5360-01-407-4782 has 2 manufacturer part numbers on file: 12448500 (U S Army Tank Automotive Command Amsta-Im-Mm), RCSK16376 (Am General Llc).
Key specifications for 12448500: Spring Free Outside Diameter: 1.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: TT-C-490 FED STD SINGLE TREATMENT RESPONSE OVERALL; End Style: RAISED HOOK FIRST END; End Style: CONED HOOK SECOND END. 18 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.