The Spring,helical,extension, cataloged under National Stock Number 5360-00-783-4040, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Polytech Defense Spares Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 — Coil, Flat, Leaf, and Wire Springs (FSG 53) |
| Manufacturers | Polytech Defense Spares Llc (CAGE 4K539) |
| Parameter | Value |
|---|---|
| NSN | 5360-00-783-4040 |
| Primary Part Number | 10495-2 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Polytech Defense Spares Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 10495-2 PRIMARY | Polytech Defense Spares Llc (USA) |
| Reference | Meaning |
|---|---|
| 10495-2 | C/1 Advisory reference — outside the item-of-supply concept Atlantic Inertial Systems Inc Div Cheshire Division |
| 10495-2 | 3/9 Design control — primary reference Atlantic Inertial Systems Inc |
| 10495-2 | 5/9 Secondary reference Fl Aerospace Corp Janitrol Aero Div/general Design |
NSN 5360-00-783-4040 is a Spring,helical,extension, manufactured by Polytech Defense Spares Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-783-4040 has 1 manufacturer part number on file: 10495-2 (Polytech Defense Spares Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-017-0550. Verify interchangeability with system specifications before substitution.
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.