The Spring,helical,compression, cataloged under National Stock Number 5360-00-964-9028, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Alturdyne International. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-964-9028 |
| Primary Part Number | 26664-1 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Alturdyne International |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.295 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.580 INCHES NOMINAL IN |
| Spring Deflection Rate | 15.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.238 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 0.305 INCHES NOMINAL IN |
| Coil Quantity | 7 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 631 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 |
|---|---|
| 26664-1 PRIMARY | Alturdyne International (USA) |
| Reference | Meaning |
|---|---|
| 26664-1 | 3/9 Design control — primary reference Solar Turbines Incorporated Dba Solar Turbines Incorporated |
| 26664-1 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 5360-00-964-9028 is a Spring,helical,compression, manufactured by Alturdyne International, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-964-9028 has 1 manufacturer part number on file: 26664-1 (Alturdyne International).
2 possible matches (shared part number, not a government interchangeability claim): 6810-01-356-6703, 4320-01-583-9049. Verify interchangeability with system specifications before substitution.
Key specifications for 26664-1: Spring Free Outside Diameter: 0.295 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Style Designator: CYLINDRICAL; Material Document and Classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.