The Spring,helical,extension, cataloged under National Stock Number 5360-01-319-1548, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-319-1548 |
| Primary Part Number | 5520595 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Spring Free Outside Diameter | 10.4 MILLIMETERS NOMINAL MM |
| Load Rating | 3.4 KILOGRAMS NOMINAL KG |
| End Style | MACHINE LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 3.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Material Document and Classification | QQ-W-428,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 40.6 MILLIMETERS NOMINAL MM |
| Spring Deflection Rate | 0.201 KILOGRAMS PER MILLIMETER NOMINAL KG |
| Coil to Hook Inside Length | 7.8 MILLIMETERS NOMINAL BOTH ENDS MM |
| Inside Diameter | 7.8 MILLIMETERS NOMINAL MM |
| Spring Length Under Load | 51.0 MILLIMETERS NOMINAL MM |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 3.5 MILLIMETERS NOMINAL BOTH ENDS MM |
| 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 |
|---|---|
| 5520595 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5360PL0956679 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5360-01-319-1548 is a Spring,helical,extension, manufactured by Naval Sea Systems Command, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-319-1548 has 1 manufacturer part number on file: 5520595 (Naval Sea Systems Command).
Key specifications for 5520595: Spring Free Outside Diameter: 10.4 MILLIMETERS NOMINAL MM; Load Rating: 3.4 KILOGRAMS NOMINAL KG; End Style: MACHINE LOOP BOTH ENDS; Design Type: CLOSED. 15 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.