The Washer,concave, cataloged under National Stock Number 5310-00-682-5866, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-682-5866 |
| Primary Part Number | 9053813 |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Radius | 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN |
| Style Designator | CONCAVE |
| Material Document and Classification | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Material Thickness | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Recess Diameter | 0.395 INCHES NOMINAL IN |
| Material | STEEL COMP 1117 OVERALL |
| Hole Diameter | 0.196 INCHES NOMINAL 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 |
|---|---|
| 9053813 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5310-00-682-5866 is a Washer,concave, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-682-5866 has 1 manufacturer part number on file: 9053813 (Us Army Aviation and Missile Command).
Key specifications for 9053813: Radius: 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN; Style Designator: CONCAVE; Material Document and Classification: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM 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.