The Spring,helical,extension, cataloged under National Stock Number 5360-00-237-5903, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Beseler, Charles Co Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-237-5903 |
| Primary Part Number | S1315S197 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Beseler, Charles Co Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.500 INCHES NOMINAL IN |
| End Style | RAISED HOOK SECOND END |
| End Style | MACHINE CUT-OFF FIRST END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.531 INCHES NOMINAL SECOND END IN |
| Spring Free Length | 0.2572 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.719 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Coil Quantity | 23 |
| Surface Treatment | ZINC OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.188 INCHES NOMINAL SECOND END 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 |
|---|---|
| S1315S197 PRIMARY | Beseler, Charles Co Inc (USA) |
NSN 5360-00-237-5903 is a Spring,helical,extension, manufactured by Beseler, Charles Co Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-237-5903 has 1 manufacturer part number on file: S1315S197 (Beseler, Charles Co Inc).
Key specifications for S1315S197: Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN; End Style: RAISED HOOK SECOND END; End Style: MACHINE CUT-OFF FIRST END; Design Type: CLOSED. 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.