The Spring,helical,extension, cataloged under National Stock Number 5360-00-321-2289, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-321-2289 |
| Primary Part Number | MS24586-649 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.360 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Load Rating | 17.60 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.860 INCHES NOMINAL IN |
| Spring Deflection Rate | 12.080 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Spring Length Under Load | 4.070 INCHES MAXIMUM IN |
| Coil Quantity | 40 |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 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 |
|---|---|
| MS24586-649 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS13572 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS24586-649 | 5/9 Secondary reference U.S. Government activity |
| MS24586-649 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5360-00-321-2289 is a Spring,helical,extension, manufactured by Sae International Dba Sae International, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-321-2289 has 1 manufacturer part number on file: MS24586-649 (Sae International Dba Sae International).
Key specifications for MS24586-649: Spring Free Outside Diameter: 0.360 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Load Rating: 17.60 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK BOTH ENDS. 17 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.