The Washer,spring Tension, cataloged under National Stock Number 5310-01-481-7146, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Key Bellevilles Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-7146 |
| Primary Part Number | K1000-C-105-S |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Key Bellevilles Inc |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Outside Diameter | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN |
| Material Thickness | 0.102 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN |
| Material | STEEL COMP 301 OVERALL |
| Hole Diameter | 0.380 INCHES MINIMUM AND 0.410 INCHES MAXIMUM 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 |
|---|---|
| K1000-C-105-S PRIMARY | Key Bellevilles Inc (USA) |
| Reference | Meaning |
|---|---|
| 120997-2 | 5/2 Secondary reference U.S. Government activity |
| 120997 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-481-7146 is a Washer,spring Tension, manufactured by Key Bellevilles Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-481-7146 has 1 manufacturer part number on file: K1000-C-105-S (Key Bellevilles Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-481-7163. Verify interchangeability with system specifications before substitution.
Key specifications for K1000-C-105-S: Overall Height: 0.112 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN; Style Designator: SPRING TENSION; Outside Diameter: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN; Material Thickness: 0.102 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN. 5 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.