The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-246-7171, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-246-7171 |
| Primary Part Number | 8213-S-0440-3B |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| Status | ACTIVE |
| Width Across Flats | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Height | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR 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 |
|---|---|
| 1120H-S-0.375-6 | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
| 8213-S-0440-3B PRIMARY | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| 130-05-ST-4-40-V | Promptus Electonic Hardware Inc (USA) |
| 2102-440-S-3 | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| P-521-M12-F06-440 | Unicorp. (USA) |
| ST6951-0440-0.375-32 | Lyn-Tron, Inc. Dba Lyn-Tron Inc (USA) |
| Reference | Meaning |
|---|---|
| 8213-S-0440-3B | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| A441837-2 | 5/9 Secondary reference Miltope Corporation |
| S176-166 | 5/9 Secondary reference Miltope Corporation |
NSN 5310-01-246-7171 is a Nut,plain,hexagon, manufactured by Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-246-7171 has 6 manufacturer part numbers on file: 1120H-S-0.375-6 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation), 8213-S-0440-3B (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware), 130-05-ST-4-40-V (Promptus Electonic Hardware Inc), 2102-440-S-3 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc), P-521-M12-F06-440 (Unicorp.) and 1 more.
Key specifications for 8213-S-0440-3B: Width Across Flats: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 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.