The Spring,helical,compression, cataloged under National Stock Number 5360-00-866-9990, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-866-9990 |
| Primary Part Number | 503319 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Style Designator | CYLINDRICAL |
| Spring Deflection Rate | 1.328 POUNDS PER INCH NOMINAL LBS |
| Coil Helix Direction | RIGHT-HAND OR LEFT-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 |
|---|---|
| 503319 | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA) |
| 503319 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 503319 | 5/2 Secondary reference U.S. Government activity |
| 503319 | 5/2 Secondary reference U.S. Government activity |
| 503319 | 5/9 Secondary reference Royal Oak Gage, Inc |
NSN 5360-00-866-9990 is a Spring,helical,compression, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-866-9990 has 2 manufacturer part numbers on file: 503319 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring), 503319 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-156-4850. Verify interchangeability with system specifications before substitution.
Key specifications for 503319: Style Designator: CYLINDRICAL; Spring Deflection Rate: 1.328 POUNDS PER INCH NOMINAL LBS; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Material: STEEL OVERALL. 4 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.