The Washer,recessed, cataloged under National Stock Number 5310-01-175-5392, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-175-5392 |
| Primary Part Number | 75A613061-2001 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-A-250/5,T81 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Recess Diameter | 1.430 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 1.330 INCHES NOMINAL IN |
| Recess Angle | 86.0 DEGREES MINIMUM AND 94.0 DEGREES MAXIMUM |
| 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 |
|---|---|
| 75A613061-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75A613061-2001 | 5/9 Secondary reference Pioneer Machine Products Inc. |
NSN 5310-01-175-5392 is a Washer,recessed, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-175-5392 has 1 manufacturer part number on file: 75A613061-2001 (The Boeing Company Div Defense).
Key specifications for 75A613061-2001: Style Designator: RECESSED; Material Document and Classification: QQ-A-250/5,T81 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.750 INCHES NOMINAL IN; Material Thickness: 0.125 INCHES NOMINAL 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.