The Spring,helical,compression, cataloged under National Stock Number 5360-00-342-0503, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-342-0503 |
| Primary Part Number | 52-10278 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.450 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.445 INCHES NOMINAL IN |
| Spring Deflection Rate | 12.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN |
| Coil Quantity | 6 |
| 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 |
NSN 5360-00-342-0503 is a Spring,helical,compression, manufactured by Triumph Thermal Systems, Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-342-0503 has 2 manufacturer part numbers on file: 52-10278 (Triumph Thermal Systems, Llc), 52-10278 (Pti Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-222-9194. Verify interchangeability with system specifications before substitution.
Key specifications for 52-10278: Spring Free Outside Diameter: 1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.450 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 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.