The Nut,plain,round, cataloged under National Stock Number 5310-01-128-8965, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Promptus Electonic Hardware Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-128-8965 |
| Primary Part Number | 122-05-BR-440-M |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Promptus Electonic Hardware Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633,TY 1,CL 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-B-626,1/2 H FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Diameter | 0.188 INCHES NOMINAL IN |
| Nut Thickness | 0.375 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY 353 OR 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 |
|---|---|
| 122-05-BR-440-M | Promptus Electonic Hardware Inc (USA) |
| 1030R-B-.375-31 | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
| 1635-440-B-12 | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| B-3104-440-39 | Globe Fasteners Inc (USA) |
| P-301-M01-F21-440 | Unicorp. (USA) |
| Reference | Meaning |
|---|---|
| 10109507 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 8079-B-0440-28 | C/1 Advisory reference — outside the item-of-supply concept Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| 8079-B-0440-28 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 9049 | 3/2 Design control — primary reference U.S. Government activity |
| 9049 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-128-8965 is a Nut,plain,round, manufactured by Promptus Electonic Hardware Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-128-8965 has 5 manufacturer part numbers on file: 122-05-BR-440-M (Promptus Electonic Hardware Inc), 1030R-B-.375-31 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation), 1635-440-B-12 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc), B-3104-440-39 (Globe Fasteners Inc), P-301-M01-F21-440 (Unicorp.).
Key specifications for 122-05-BR-440-M: Surface Treatment Document and Classification: ASTM B633,TY 1,CL 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-B-626,1/2 H FED SPEC 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.