The Spring,helical,compression, cataloged under National Stock Number 5360-01-543-7657, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-543-7657 |
| Primary Part Number | MC21704 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace |
| Status | ACTIVE |
| Spring Solid Length | 0.901 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 1.605 INCHES NOMINAL IN |
| Spring Deflection Rate | 95.500 POUNDS PER INCH NOMINAL LBS |
| Spring Solid Outside Diameter | 0.755 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Coil Quantity | 8.5 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| MC21704 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
NSN 5360-01-543-7657 is a Spring,helical,compression, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-543-7657 has 1 manufacturer part number on file: MC21704 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace).
Key specifications for MC21704: Spring Solid Length: 0.901 INCHES NOMINAL IN; Criticality Code Justification: AGAV; Style Designator: CYLINDRICAL; Spring Free Length: 1.605 INCHES NOMINAL IN. 8 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.