The Nut,plain,clinch, cataloged under National Stock Number 5310-01-243-7310, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-243-7310 |
| Primary Part Number | SM-A-800722-6 |
| Item Name | Nut,plain,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-N-290,CL 1,GR F FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hardness Rating | 40.0 ROCKWELL B MAXIMUM |
| Material Document and Classification | QQ-B-626,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.075 INCHES NOMINAL BOSS IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Diameter | 0.250 INCHES NOMINAL IN |
| Counterbore Diameter | 0.112 INCHES MINIMUM AND 0.115 INCHES MAXIMUM BOSS IN |
| Pilot Diameter | 0.135 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| Pilot Length | 0.075 INCHES NOMINAL IN |
| Nut Height | 0.325 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Nut Style | CLINCH |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY 360 OVERALL |
| 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 |
|---|---|
| SM-A-800722-6 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| SM-A-800722-6 | Fastener Technology Corp (USA) |
| SM-A-800722-6 PRIMARY | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| Reference | Meaning |
|---|---|
| SM-A-800722-6 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-01-243-7310 is a Nut,plain,clinch, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-243-7310 has 3 manufacturer part numbers on file: SM-A-800722-6 (Fastener Innovation Technology, Inc. Dba F I T), SM-A-800722-6 (Fastener Technology Corp), SM-A-800722-6 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc).
Key specifications for SM-A-800722-6: Surface Treatment Document and Classification: QQ-N-290,CL 1,GR F FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Hardness Rating: 40.0 ROCKWELL B MAXIMUM; Material Document and Classification: QQ-B-626,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 17 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.