The Spring,helical,torsion, cataloged under National Stock Number 5360-00-239-7440, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Ncr Corporation Dba Ncr. 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 | 5360-00-239-7440 |
| Primary Part Number | 84000172 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Ncr Corporation Dba Ncr |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.390 INCHES NOMINAL IN |
| End Style | STRAIGHT BEND END (RIGHT) OVERALL |
| End Length | 0.094 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.563 INCHES NOMINAL IN |
| Inside Diameter | 0.324 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.250 INCHES NOMINAL OVERALL IN |
| Coil Quantity | 6 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| 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 |
|---|---|
| 84000172 PRIMARY | Ncr Corporation Dba Ncr (USA) |
NSN 5360-00-239-7440 is a Spring,helical,torsion, manufactured by Ncr Corporation Dba Ncr, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-239-7440 has 1 manufacturer part number on file: 84000172 (Ncr Corporation Dba Ncr).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-045-0629. Verify interchangeability with system specifications before substitution.
Key specifications for 84000172: Spring Free Outside Diameter: 0.390 INCHES NOMINAL IN; End Style: STRAIGHT BEND END (RIGHT) OVERALL; End Length: 0.094 INCHES NOMINAL BOTH ENDS IN; Style Designator: SINGLE TORSION LEFT HAND. 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.