The Spring,helical,compression, cataloged under National Stock Number 5360-01-138-6638, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Cummins Inc.. Government technical data includes 11 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-138-6638 |
| Primary Part Number | 138781 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.501 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.262 INCHES NOMINAL IN |
| Accommodated Rod Diameter | 0.448 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN |
| Spring Deflection Rate | 16.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.407 INCHES MINIMUM AND 0.417 INCHES MAXIMUM IN |
| Coil Quantity | 5 1/2 |
| 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 |
|---|---|
| 138781 PRIMARY | Cummins Inc. (USA) |
NSN 5360-01-138-6638 is a Spring,helical,compression, manufactured by Cummins Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-138-6638 has 1 manufacturer part number on file: 138781 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-320-2380. Verify interchangeability with system specifications before substitution.
Key specifications for 138781: Spring Free Outside Diameter: 0.501 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.262 INCHES NOMINAL IN; Accommodated Rod Diameter: 0.448 INCHES NOMINAL IN. 11 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.