The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-177-7549, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 17 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. 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 | 5310-00-177-7549 |
| Primary Part Number | 531951-1 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Width Across Flats | 0.302 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hole Configuration Style | CONFIGURATION B |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Nut Height | 0.102 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.040 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Countersink Angle | 110.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| 531951-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 5310-00-177-7549 is a Nut,plain,hexagon, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-177-7549 has 1 manufacturer part number on file: 531951-1 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-251-1356. Verify interchangeability with system specifications before substitution.
Key specifications for 531951-1: Width Across Flats: 0.302 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC). 17 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.