The Spring,helical,extension, cataloged under National Stock Number 5360-01-381-6572, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Barnes Group Inc Bowman Distribution Div. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5360-01-381-6572 |
| Primary Part Number | E1500-125-5500M |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Barnes Group Inc Bowman Distribution Div |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.500 INCHES NOMINAL IN |
| End Style | FULL LOOP BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 5.500 INCHES NOMINAL IN |
| Spring Deflection Rate | 6.400 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 5.250 INCHES NOMINAL IN |
| Stock Diameter | 0.125 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL 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 |
|---|---|
| E1500-125-5500M PRIMARY | Barnes Group Inc Bowman Distribution Div (USA) |
| Reference | Meaning |
|---|---|
| 20758 | 5/9 Secondary reference Liftking Manufacturing Corp |
NSN 5360-01-381-6572 is a Spring,helical,extension, manufactured by Barnes Group Inc Bowman Distribution Div, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-381-6572 has 1 manufacturer part number on file: E1500-125-5500M (Barnes Group Inc Bowman Distribution Div).
3 possible matches (shared part number, not a government interchangeability claim): 4310-01-434-2573, 5310-01-447-7929, 6145-01-565-6118. Verify interchangeability with system specifications before substitution.
Key specifications for E1500-125-5500M: Spring Free Outside Diameter: 1.500 INCHES NOMINAL IN; End Style: FULL LOOP BOTH ENDS; Style Designator: CYLINDRICAL; Spring Free Length: 5.500 INCHES NOMINAL IN. 9 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.