The Spring,helical,extension, cataloged under National Stock Number 5360-00-939-0646, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-939-0646 |
| Primary Part Number | 547304 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.429 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN |
| Load Rating | 14.500 POUNDS NOMINAL LBS |
| End Style | RAISED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL W/ CONVEX ENDS |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.161 INCHES MINIMUM AND 2.239 INCHES MAXIMUM IN |
| Coil to Hook Inside Length | 0.500 INCHES NOMINAL SECOND END IN |
| Coil to Hook Inside Length | 0.400 INCHES NOMINAL FIRST END IN |
| Spring Length Under Load | 2.570 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 631 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 |
|---|---|
| 547304 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5360-00-939-0646 is a Spring,helical,extension, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-939-0646 has 1 manufacturer part number on file: 547304 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 547304: Spring Free Outside Diameter: 0.429 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN; Load Rating: 14.500 POUNDS NOMINAL LBS; End Style: RAISED 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.