The Washer,flat, cataloged under National Stock Number 5310-00-980-5403, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Alvord-Polk, Inc Dba Ampm Div Aircraft Missile Parts Manufacturing. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-980-5403 |
| Primary Part Number | 71766-23X2P12 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Alvord-Polk, Inc Dba Ampm Div Aircraft Missile Parts Manufacturing |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES BOTTOM |
| Surface Finish | 32.0 MICROINCHES TOP |
| Overall Diameter | 1.234 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.843 INCHES NOMINAL IN |
| Thickness | 0.123 INCHES MINIMUM AND 0.125 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 |
|---|---|
| 71766-23X2P12 | Alvord-Polk, Inc Dba Ampm Div Aircraft Missile Parts Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 71766-23X2PC12 | 5/9 Secondary reference U.S. Government activity |
| 6002148-0012 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-980-5403 is a Washer,flat, manufactured by Alvord-Polk, Inc Dba Ampm Div Aircraft Missile Parts Manufacturing, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-980-5403 has 1 manufacturer part number on file: 71766-23X2P12 (Alvord-Polk, Inc Dba Ampm Div Aircraft Missile Parts Manufacturing).
Key specifications for 71766-23X2P12: Surface Finish: 32.0 MICROINCHES BOTTOM; Surface Finish: 32.0 MICROINCHES TOP; Overall Diameter: 1.234 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR. 9 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.