The Spring,helical,extension, cataloged under National Stock Number 5360-01-135-7215, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Marathonnorco Aerospace, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Gk Mechanical Systems Llc (CAGE 3BU57); Marathonnorco Aerospace, Inc. (CAGE 08844) |
| Parameter | Value |
|---|---|
| NSN | 5360-01-135-7215 |
| Primary Part Number | CL278 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Marathonnorco Aerospace, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 20-1232-02 | Gk Mechanical Systems Llc (USA) |
| CL278 PRIMARY | Marathonnorco Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 208-5530891 # 1 AP | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5360-01-135-7215 is a Spring,helical,extension, manufactured by Marathonnorco Aerospace, Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-135-7215 has 2 manufacturer part numbers on file: 20-1232-02 (Gk Mechanical Systems Llc), CL278 (Marathonnorco Aerospace, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-485-3950, 5340-01-519-8276. 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.