The Washer,convex, cataloged under National Stock Number 5310-01-181-5051, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cm Manufacturing Inc Dba Cm Manufacturing Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-181-5051 |
| Primary Part Number | 1881A462-10 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cm Manufacturing Inc Dba Cm Manufacturing Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | CONVEX |
| Material Document and Classification | QQ-A-225/6, T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/3, T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Material Thickness | 0.168 INCHES NOMINAL IN |
| Surface Treatment | ENAMEL OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 0.390 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 |
|---|---|
| 1881A462-10 PRIMARY | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 1881A462-10 | 7/2 Vendor item drawing reference Goodrich Corporation |
| 1881A462-10 | 5/9 Secondary reference Marking Devices Inc |
| 1881A462-10 | 7/9 Vendor item drawing reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 1881A462-10 | 5/9 Secondary reference Mc Clure Sales Ltd |
NSN 5310-01-181-5051 is a Washer,convex, manufactured by Cm Manufacturing Inc Dba Cm Manufacturing Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-181-5051 has 1 manufacturer part number on file: 1881A462-10 (Cm Manufacturing Inc Dba Cm Manufacturing Inc).
Key specifications for 1881A462-10: Surface Treatment Document and Classification: MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: CONVEX; Material Document and Classification: QQ-A-225/6, T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/3, T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.625 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.