The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-111-9451, 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 12 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 | 5310-01-111-9451 |
| Primary Part Number | 5428361 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Height | 0.060 INCHES NOMINAL IN |
| Style Designator | SHOULDERED AND RECESSED |
| Material Document and Classification | QQ-A-250/6 TEMPER H321 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/7 TEMPER H32 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/5 TEMPER H111 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.560 INCHES NOMINAL IN |
| Material Thickness | 0.190 INCHES NOMINAL IN |
| Shoulder Diameter | 1.376 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN |
| Recess Diameter | 1.051 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 5083 OR ALUMINUM ALLOY 5086 OVERALL |
| Hole Diameter | 0.998 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Recess Angle | 40.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 5428361 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-111-9451 is a Washer,shouldered and Recessed, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-111-9451 has 1 manufacturer part number on file: 5428361 (Naval Sea Systems Command).
Key specifications for 5428361: Surface Treatment Document and Classification: MIL-A-8625 TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Height: 0.060 INCHES NOMINAL IN; Style Designator: SHOULDERED AND RECESSED; Material Document and Classification: QQ-A-250/6 TEMPER H321 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/7 TEMPER H32 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/5 TEMPER H111 FED SPEC 2ND MATERIAL RESPONSE OVERALL. 12 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.