The Washer,flat, cataloged under National Stock Number 5310-01-723-8088, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Incorporated Div Ingalls Shipbuilding. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-723-8088 |
| Primary Part Number | A026-066-QAD012 PC 121-7 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Huntington Ingalls Incorporated Div Ingalls Shipbuilding |
| Status | ACTIVE |
| Overall Diameter | 1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN |
| Material Document and Classification | SAE AIR4127 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN |
| Thickness | 0.108 INCHES MINIMUM AND 0.160 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 |
|---|---|
| A026-066-QAD012 PC 121-7 PRIMARY | Huntington Ingalls Incorporated Div Ingalls Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 2016-437-2666 | D/9 Drawing number reference only Huntington Ingalls Incorporated Div Ingalls Shipbuilding |
NSN 5310-01-723-8088 is a Washer,flat, manufactured by Huntington Ingalls Incorporated Div Ingalls Shipbuilding, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-723-8088 has 1 manufacturer part number on file: A026-066-QAD012 PC 121-7 (Huntington Ingalls Incorporated Div Ingalls Shipbuilding).
Key specifications for A026-066-QAD012 PC 121-7: Overall Diameter: 1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN; Material Document and Classification: SAE AIR4127 ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.