The Washer,flat, cataloged under National Stock Number 5310-00-262-4606, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 10 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 | 5310-00-262-4606 |
| Primary Part Number | AD1961 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-B-611,COMP C-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY C OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.041 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Thickness | 0.015 INCHES MINIMUM AND 0.025 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 |
|---|---|
| AD1961 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 5310-00-262-4606 is a Washer,flat, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-262-4606 has 1 manufacturer part number on file: AD1961 (Avox Systems Inc Dba Avox Systems Inc).
Key specifications for AD1961: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Material Document and Classification: QQ-B-611,COMP C-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.