The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-282-5667, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-282-5667 |
| Primary Part Number | 328S20 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Airmotive Carburetor |
| Status | ACTIVE |
| Width Across Flats | 0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Height | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.044 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Hole Type and Quantity | 2 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 |
|---|---|
| 328S20 PRIMARY | Airmotive Carburetor (USA) |
| Reference | Meaning |
|---|---|
| 10121265 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 328S20 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 328S20 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 5310-00-282-5667 is a Nut,plain,hexagon, manufactured by Airmotive Carburetor, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-282-5667 has 1 manufacturer part number on file: 328S20 (Airmotive Carburetor).
Key specifications for 328S20: Width Across Flats: 0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN; Thread Series: UNF; Hole Configuration Style: CONFIGURATION B; Material Document and Classification: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL. 15 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.