The Spring,helical,compression, cataloged under National Stock Number 5360-00-646-6439, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Ambac International Corporation Div Ambac International. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-646-6439 |
| Primary Part Number | SP202663 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.150 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 1.500 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 2.638 INCHES NOMINAL IN |
| Inside Diameter | 0.820 INCHES NOMINAL IN |
| Coil Quantity | 9 |
| Coil Helix Direction | LEFT-HAND |
| 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 |
|---|---|
| SP202663 | Industrial Power Units Ltd (GBR) |
| SP202663 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
| Reference | Meaning |
|---|---|
| SP202663 | 5/9 Secondary reference Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp |
| SP202663 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5360-00-646-6439 is a Spring,helical,compression, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-646-6439 has 2 manufacturer part numbers on file: SP202663 (Industrial Power Units Ltd), SP202663 (Ambac International Corporation Div Ambac International).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-287-3485. Verify interchangeability with system specifications before substitution.
Key specifications for SP202663: Spring Free Outside Diameter: 1.150 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 1.500 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 8 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.