The Washer,recessed, cataloged under National Stock Number 5310-00-760-7075, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-760-7075 |
| Primary Part Number | 3001A81 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.940 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN |
| Recess Depth | 0.167 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Material Thickness | 0.038 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Hole Diameter | 1.400 INCHES MINIMUM AND 1.420 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 |
|---|---|
| 3001A81 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 3001481 | 5/9 Secondary reference Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
NSN 5310-00-760-7075 is a Washer,recessed, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-760-7075 has 1 manufacturer part number on file: 3001A81 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-641-3819. Verify interchangeability with system specifications before substitution.
Key specifications for 3001A81: Overall Height: 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.940 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN. 7 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.