The Washer,convex, cataloged under National Stock Number 5310-00-276-3018, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-276-3018 |
| Primary Part Number | 5173811 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Style Designator | CONVEX |
| Material Document and Classification | 4M,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OR 5M,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.870 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN |
| Features Provided | CASEHARDENED |
| Material Thickness | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.450 INCHES MINIMUM AND 0.470 INCHES MAXIMUM 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 |
|---|---|
| 5173811 | General Motors Llc Dba General Motors Llc (USA) |
| 5173811 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5173811 | 5/9 Secondary reference General Motors Corp |
| 5310PL0951871 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-00-276-3018 is a Washer,convex, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-276-3018 has 2 manufacturer part numbers on file: 5173811 (General Motors Llc Dba General Motors Llc), 5173811 (Rolls-Royce Solutions America Inc).
3 possible matches (shared part number, not a government interchangeability claim): 3030-00-285-4496, 3030-00-466-1223, 5999-01-279-8348. Verify interchangeability with system specifications before substitution.
Key specifications for 5173811: Style Designator: CONVEX; Material Document and Classification: 4M,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OR 5M,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.870 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN; Features Provided: CASEHARDENED. 7 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.