The Washer,recessed, cataloged under National Stock Number 5310-01-137-3958, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-137-3958 |
| Primary Part Number | 803-5001048 PIECE 65 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Top Recess Diameter | 1.124 INCHES MINIMUM AND 1.184 INCHES MAXIMUM IN |
| Bottom Recess Diameter | 1.124 INCHES MINIMUM AND 1.184 INCHES MAXIMUM IN |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Outside Diameter | 3.718 INCHES MINIMUM AND 3.720 INCHES MAXIMUM IN |
| Material Thickness | 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Material | PLASTIC ACETAL OVERALL |
| Hole Diameter | 1.094 INCHES NOMINAL 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 |
|---|---|
| 803-5001048 PIECE 65 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-137-3958 is a Washer,recessed, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-137-3958 has 1 manufacturer part number on file: 803-5001048 PIECE 65 (Naval Sea Systems Command).
Key specifications for 803-5001048 PIECE 65: Top Recess Diameter: 1.124 INCHES MINIMUM AND 1.184 INCHES MAXIMUM IN; Bottom Recess Diameter: 1.124 INCHES MINIMUM AND 1.184 INCHES MAXIMUM IN; Top Recess Angle: 90.0 DEGREES NOMINAL; Style Designator: RECESSED BOTH SIDES. 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.