The Spring,helical,extension, cataloged under National Stock Number 5360-00-733-9446, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-733-9446 |
| Primary Part Number | 7339446 |
| 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 | 0.750 INCHES NOMINAL IN |
| Load Rating | 70.00 POUNDS MINIMUM AND 82.00 POUNDS MAXIMUM LBS |
| End Style | SWIVEL HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | DOUBLE CYLINDRICAL |
| Opening Width | 0.850 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | QQ-W-474,COMP A /D/ FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 6.895 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 1.062 INCHES MINIMUM BOTH ENDS IN |
| Distance Between Ends | 1.062 INCHES NOMINAL IN |
| Spring Length Under Load | 7.625 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.213 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 |
|---|---|
| 7339446 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| MT199 | 5/9 Secondary reference Great American Industries Inc |
NSN 5360-00-733-9446 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 5360-00-733-9446 has 1 manufacturer part number on file: 7339446 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7339446: Spring Free Outside Diameter: 0.750 INCHES NOMINAL IN; Load Rating: 70.00 POUNDS MINIMUM AND 82.00 POUNDS MAXIMUM LBS; End Style: SWIVEL HOOK BOTH ENDS; Design Type: CLOSED. 14 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.