The Washer,recessed, cataloged under National Stock Number 5310-01-255-1046, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 10 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 | 5310-01-255-1046 |
| Primary Part Number | 3602-0261-1 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-5625,TYPE 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.450 INCHES NOMINAL IN |
| Material Thickness | 0.100 INCHES NOMINAL IN |
| Recess Diameter | 0.290 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 0.153 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN |
| Recess Angle | 80.0 DEGREES MINIMUM AND 82.0 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 |
|---|---|
| 3602-0261-1 PRIMARY | Mission Systems Orchard Park Inc (USA) |
NSN 5310-01-255-1046 is a Washer,recessed, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-255-1046 has 1 manufacturer part number on file: 3602-0261-1 (Mission Systems Orchard Park Inc).
Key specifications for 3602-0261-1: Surface Treatment Document and Classification: MIL-A-5625,TYPE 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: RECESSED; Material Document and Classification: QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.450 INCHES NOMINAL IN. 10 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.