The Nut,plain,round, cataloged under National Stock Number 5310-01-649-4709, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-649-4709 |
| Primary Part Number | C501048-1 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Hole Thread Quantity Per Inch | 20 |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Hole Configuration Style | CONFIGURATION F |
| Material Document and Classification | QQ-S-761 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.31 INCHES MINIMUM AND 0.38 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.125 INCHES IN |
| Nut Diameter | 2.22 INCHES MINIMUM AND 2.28 INCHES MAXIMUM IN |
| Drive Point Depth | 0.22 INCHES MINIMUM AND 0.28 INCHES MAXIMUM IN |
| Nut Thickness | 0.62 INCHES MINIMUM AND 0.65 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Hole Nominal Thread Diameter | 0.25 INCHES IN |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 316 OVERALL |
| Hole Type and Quantity | 1 TAPPED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-649-4709 is a Nut,plain,round, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-649-4709 has 2 manufacturer part numbers on file: C501048-1 (Lockheed Martin Corporation Div Rms), C501048-1 (Lockheed Martin Sippican, Inc. Div Communication Division).
Key specifications for C501048-1: Hole Thread Quantity Per Inch: 20; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Hole Configuration Style: CONFIGURATION F. 19 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.