The Nut,plain,round, cataloged under National Stock Number 5310-01-257-5145, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-257-5145 |
| Primary Part Number | 2007648-1 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 TYPE II,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Criticality Code Justification | FEAT |
| Material Document and Classification | QQ-A-225/9 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/11 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.312 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.125 INCHES IN |
| Nut Diameter | 4.900 INCHES NOMINAL IN |
| Drive Point Depth | 0.445 INCHES NOMINAL IN |
| Nut Thickness | 0.312 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 2007648-1 PRIMARY | Goodrich Corporation (USA) |
| 2007648-1 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 2007648-1 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
| 5310PL0779043 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-257-5145 is a Nut,plain,round, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-257-5145 has 2 manufacturer part numbers on file: 2007648-1 (Goodrich Corporation), 2007648-1 (Cm Manufacturing Inc Dba Cm Manufacturing Inc).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-660-2188. Verify interchangeability with system specifications before substitution.
Key specifications for 2007648-1: Surface Treatment Document and Classification: MIL-A-8625 TYPE II,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Criticality Code Justification: FEAT; Material Document and Classification: QQ-A-225/9 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/11 FED SPEC 2ND MATERIAL RESPONSE OVERALL. 16 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.