The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-155-7654, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-155-7654 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 2.240 INCHES NOMINAL IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.875 INCHES IN |
| Nut Height | 0.500 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.060 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM BOTH ENDS |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP E4340 OVERALL |
| Bearing Surface Type | CHAMFERED |
| Hole Type and Quantity | 3 DRILLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 93034 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-155-7654 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5342-00-775-5088, 4920-01-296-1629. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-155-7654: Width Across Flats: 2.240 INCHES NOMINAL IN; Bearing Surface Finish: 125.0 MICROINCHES; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UN. 18 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.