The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-285-1666, 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 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-285-1666 |
| Primary Part Number | 339S29 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Airmotive Carburetor |
| Status | ACTIVE |
| Width Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Series | UNF |
| Hole Configuration Style | CONFIGURATION H |
| Material Document and Classification | AMS 5024,COMP 1137 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nondefinitive Spec/std Data | C CLASS |
| Nut Height | 0.125 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.166 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 1137 OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 339S29 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| 339S29 PRIMARY | Airmotive Carburetor (USA) |
| Reference | Meaning |
|---|---|
| FFB571CLASSC | 5/9 Secondary reference U.S. Government activity |
| 339S29 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
NSN 5310-00-285-1666 is a Nut,plain,hexagon, manufactured by Airmotive Carburetor, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-1666 has 2 manufacturer part numbers on file: 339S29 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 339S29 (Airmotive Carburetor).
Key specifications for 339S29: Width Across Flats: 0.438 INCHES NOMINAL IN; Thread Series: UNF; Hole Configuration Style: CONFIGURATION H; Material Document and Classification: AMS 5024,COMP 1137 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 16 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.