The Spring,helical,extension, cataloged under National Stock Number 5360-01-004-9770, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 14 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. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-004-9770 |
| Primary Part Number | 7289 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.083 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 0.60 POUNDS NOMINAL LBS |
| End Style | REDUCED CENTER LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.622 INCHES NOMINAL IN |
| Inside Diameter | 0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Spring Length Under Load | 1.005 INCHES NOMINAL IN |
| Coil Quantity | 47 |
| Surface Treatment | PASSIVATE OVERALL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 7289 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5360-01-004-9770 is a Spring,helical,extension, manufactured by The Boeing Company Div Defense, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-004-9770 has 1 manufacturer part number on file: 7289 (The Boeing Company Div Defense).
3 possible matches (shared part number, not a government interchangeability claim): 5340-01-160-8115, 4240-01-247-2920, 5925-01-719-9039. Verify interchangeability with system specifications before substitution.
Key specifications for 7289: Spring Free Outside Diameter: 0.083 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 0.60 POUNDS NOMINAL LBS; End Style: REDUCED CENTER LOOP BOTH ENDS. 14 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.