The Spring,helical,extension, cataloged under National Stock Number 5360-01-422-1703, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Wkcsc Inc Dba Kansas Coil Spring. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-422-1703 |
| Primary Part Number | KCS 1701 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Wkcsc Inc Dba Kansas Coil Spring |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.625 INCHES NOMINAL IN |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 8.062 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.520 INCHES NOMINAL BOTH ENDS IN |
| Coil Quantity | 79 |
| Stock Thickness | 0.105 INCHES NOMINAL IN |
| Hook Radius | 0.260 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 |
|---|---|
| KCS 1701 PRIMARY | Wkcsc Inc Dba Kansas Coil Spring (USA) |
| Reference | Meaning |
|---|---|
| KCS 1701 | 3/9 Design control — primary reference Kansas Coil Spring Co Inc |
NSN 5360-01-422-1703 is a Spring,helical,extension, manufactured by Wkcsc Inc Dba Kansas Coil Spring, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-422-1703 has 1 manufacturer part number on file: KCS 1701 (Wkcsc Inc Dba Kansas Coil Spring).
Key specifications for KCS 1701: Spring Free Outside Diameter: 0.625 INCHES NOMINAL IN; End Style: SHORT TWISTED HOOK BOTH ENDS; Style Designator: CYLINDRICAL; Spring Free Length: 8.062 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.