The Spring,helical,extension, cataloged under National Stock Number 5360-00-511-2557, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-511-2557 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.8125 INCHES NOMINAL0.8125 INCHES NOMINAL IN |
| Load Rating | 29.180 POUNDS NOMINAL29.180 POUNDS NOMINAL LBS |
| End Style | RAISED HOOK BOTH ENDSRAISED HOOK BOTH ENDS |
| Design Type | CLOSEDCLOSED |
| Style Designator | CYLINDRICALCYLINDRICAL |
| Opening Width | 0.250 INCHES NOMINAL FIRST END0.250 INCHES NOMINAL FIRST END IN |
| Opening Width | 0.500 INCHES NOMINAL BOTH ENDS0.500 INCHES NOMINAL BOTH ENDS IN |
| Spring Free Length | 3.933 INCHES NOMINAL3.933 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.625 INCHES NOMINAL FIRST END0.625 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.875 INCHES NOMINAL SECOND END0.875 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.6295 INCHES NOMINAL0.6295 INCHES NOMINAL IN |
| Spring Length Under Load | 5.750 INCHES NOMINAL5.750 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND OR RIGHT-HAND OR LEFT-HANDLEFT-HAND |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 85902R1 | 3/9 Design control — primary reference International Harvester Co Agricultural Equipment Div |
| 85902R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 85902R1 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-00-511-2557 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-511-2557: Spring Free Outside Diameter: 0.8125 INCHES NOMINAL0.8125 INCHES NOMINAL IN; Load Rating: 29.180 POUNDS NOMINAL29.180 POUNDS NOMINAL LBS; End Style: RAISED HOOK BOTH ENDSRAISED HOOK BOTH ENDS; Design Type: CLOSEDCLOSED. 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.