The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-455-2437, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 14 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 | 5310-00-455-2437 |
| Primary Part Number | 56182 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Width Across Flats | 0.435 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN |
| Bearing Surface Finish | 63.0 MICROINCHES |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Material Document and Classification | QQ-A-225/6 TEMPER T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Height | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 56182 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 5310-00-455-2437 is a Nut,plain,hexagon, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-455-2437 has 1 manufacturer part number on file: 56182 (Avox Systems Inc Dba Avox Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-600-3086. Verify interchangeability with system specifications before substitution.
Key specifications for 56182: Width Across Flats: 0.435 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN; Bearing Surface Finish: 63.0 MICROINCHES; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF. 14 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.