The Washer,spring Tension, cataloged under National Stock Number 5310-01-729-0567, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Key Bellevilles Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Key Bellevilles Inc (CAGE 52826); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-729-0567 |
| Primary Part Number | 6015-718 KEY |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Key Bellevilles Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 6015-718 KEY PRIMARY | Key Bellevilles Inc (USA) |
| 721-8618576-13 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 8618576 | D/9 Drawing number reference only Naval Sea Systems Command |
| 218104938 | 5/2 Secondary reference U.S. Government activity |
| H861-5204-13 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-729-0567 is a Washer,spring Tension, manufactured by Key Bellevilles Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-729-0567 has 2 manufacturer part numbers on file: 6015-718 KEY (Key Bellevilles Inc), 721-8618576-13 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-729-1630, 5315-01-729-1745. Verify interchangeability with system specifications before substitution.
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.