The Spring,helical,extension, cataloged under National Stock Number 5360-00-255-5733, 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 19 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 | 5360-00-255-5733 |
| Primary Part Number | 11659945 |
| 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 | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | TT-E-489 FED SPEC ALL TREATMENT RESPONSES OR TT-E-496 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Load Rating | 94.00 POUNDS MAXIMUM LBS |
| End Style | DOBBY HOOK FIRST END |
| End Style | MACHINED HALF LOOP SECOND END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.190 INCHES NOMINAL SECOND END IN |
| Opening Width | 0.684 INCHES NOMINAL FIRST END IN |
| Material Document and Classification | QQ-W-428,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 5.080 INCHES NOMINAL IN |
| Inside Diameter | 0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Spring Length Under Load | 5.460 INCHES NOMINAL IN |
| Coil Quantity | 23-1/4 |
| Surface Treatment | ENAMEL OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.156 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.180 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 |
| Part Number | Manufacturer |
|---|---|
| 11659945 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5360-00-255-5733 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 5360-00-255-5733 has 1 manufacturer part number on file: 11659945 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11659945: Spring Free Outside Diameter: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN; Surface Treatment Document and Classification: TT-E-489 FED SPEC ALL TREATMENT RESPONSES OR TT-E-496 FED SPEC ALL TREATMENT RESPONSES OVERALL; Load Rating: 94.00 POUNDS MAXIMUM LBS; End Style: DOBBY HOOK FIRST END. 19 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.