The Spring,helical,extension, cataloged under National Stock Number 5360-00-582-8077, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Carrier Corp. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-582-8077 |
| Primary Part Number | 44B3521-696A |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Carrier Corp |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.125 INCHES NOMINAL IN |
| Load Rating | 25.00 POUNDS NOMINAL LBS |
| End Style | MACHINED HALF LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.125 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | MIL-S-16410,GRADE B,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.434 INCHES NOMINAL IN |
| Spring Deflection Rate | 10.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.941 INCHES NOMINAL IN |
| Spring Length Under Load | 3.750 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.4375 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 |
|---|---|
| 44B3521-696A PRIMARY | Carrier Corp (USA) |
| 44B3521-696A | Elliott Company Div Jeannette (USA) |
NSN 5360-00-582-8077 is a Spring,helical,extension, manufactured by Carrier Corp, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-582-8077 has 2 manufacturer part numbers on file: 44B3521-696A (Carrier Corp), 44B3521-696A (Elliott Company Div Jeannette).
Key specifications for 44B3521-696A: Spring Free Outside Diameter: 1.125 INCHES NOMINAL IN; Load Rating: 25.00 POUNDS NOMINAL LBS; End Style: MACHINED HALF LOOP 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.