The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-033-0001, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Airmotive Carburetor. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-033-0001 |
| Primary Part Number | 185774 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Airmotive Carburetor |
| Status | ACTIVE |
| Width Across Flats | 0.873 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Thread Series | UNEF |
| Material Document and Classification | AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Height | 0.234 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| 185774 PRIMARY | Airmotive Carburetor (USA) |
| Reference | Meaning |
|---|---|
| 185774 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 5310-00-033-0001 is a Nut,plain,hexagon, manufactured by Airmotive Carburetor, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-033-0001 has 1 manufacturer part number on file: 185774 (Airmotive Carburetor).
1 possible match (shared part number, not a government interchangeability claim): 4820-00-343-6285. Verify interchangeability with system specifications before substitution.
Key specifications for 185774: Width Across Flats: 0.873 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN; Thread Series: UNEF; Material Document and Classification: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL; Thread Direction: RIGHT-HAND. 12 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.