The Spring,helical,extension, cataloged under National Stock Number 5360-01-056-4555, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Cam Fabricated Systems Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-01-056-4555 |
| Primary Part Number | M534K33-41 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Cam Fabricated Systems Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.875 INCHES NOMINAL IN |
| End Style | MACHINE LOOP BOTH ENDS |
| Design Type | OPEN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-423 FORM 1 COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Inside Diameter | 0.692 INCHES NOMINAL IN |
| Coil Quantity | 24 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.346 INCHES NOMINAL BOTH ENDS IN |
| 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 |
|---|---|
| M534K33-41 PRIMARY | Cam Fabricated Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| A9629 | 5/9 Secondary reference U.S. Government activity |
| 5-11-829-29 | 5/2 Secondary reference U.S. Government activity |
| 5-11-829 | D/9 Drawing number reference only U.S. Government activity |
| 5-11-844-29 | 5/2 Secondary reference U.S. Government activity |
NSN 5360-01-056-4555 is a Spring,helical,extension, manufactured by Cam Fabricated Systems Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-056-4555 has 1 manufacturer part number on file: M534K33-41 (Cam Fabricated Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-488-7655. Verify interchangeability with system specifications before substitution.
Key specifications for M534K33-41: Spring Free Outside Diameter: 0.875 INCHES NOMINAL IN; End Style: MACHINE LOOP BOTH ENDS; Design Type: OPEN; Style Designator: CYLINDRICAL. 10 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.