The Spring,helical,extension, cataloged under National Stock Number 5360-00-261-4364, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Mcgraw-Edison Co Power Systems Group. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-261-4364 |
| Primary Part Number | KP173R |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Mcgraw-Edison Co Power Systems Group |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.844 INCHES NOMINAL IN |
| Load Rating | 105.00 POUNDS NOMINAL LBS |
| End Style | LONG LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 7.854 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 1.625 INCHES NOMINAL SECOND END IN |
| Coil to Hook Inside Length | 0.625 INCHES NOMINAL FIRST END IN |
| Inside Diameter | 0.552 INCHES NOMINAL IN |
| Spring Length Under Load | 9.500 INCHES NOMINAL IN |
| Coil Quantity | 35-1/2 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.219 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 |
|---|---|
| KP173R PRIMARY | Mcgraw-Edison Co Power Systems Group (USA) |
| Reference | Meaning |
|---|---|
| R173A | 5/9 Secondary reference Mcgraw-Edison Co Power Systems Group |
NSN 5360-00-261-4364 is a Spring,helical,extension, manufactured by Mcgraw-Edison Co Power Systems Group, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-261-4364 has 1 manufacturer part number on file: KP173R (Mcgraw-Edison Co Power Systems Group).
Key specifications for KP173R: Spring Free Outside Diameter: 0.844 INCHES NOMINAL IN; Load Rating: 105.00 POUNDS NOMINAL LBS; End Style: LONG LOOP BOTH ENDS; 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.