The Spring,helical,compression, cataloged under National Stock Number 5360-00-680-4523, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is O. C. Keckley Company. Government technical data includes 12 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 | 5360-00-680-4523 |
| Primary Part Number | A56187-64 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | O. C. Keckley Company |
| Status | ACTIVE |
| Spring Free Outside Diameter | 4.404 INCHES MINIMUM AND 4.596 INCHES MAXIMUM IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 3.500 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | JAN-S-1160,GRADE 1,TYPE B-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 10.500 INCHES NOMINAL IN |
| Spring Deflection Rate | 82.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 3.688 INCHES NOMINAL IN |
| Coil Quantity | 9 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-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 |
| Part Number | Manufacturer |
|---|---|
| A56187-64 PRIMARY | O. C. Keckley Company (USA) |
NSN 5360-00-680-4523 is a Spring,helical,compression, manufactured by O. C. Keckley Company, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-680-4523 has 1 manufacturer part number on file: A56187-64 (O. C. Keckley Company).
Key specifications for A56187-64: Spring Free Outside Diameter: 4.404 INCHES MINIMUM AND 4.596 INCHES MAXIMUM IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 3.500 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 12 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.