The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-199-0261, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems. Government technical data includes 17 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-199-0261 |
| Primary Part Number | BRH10C3D |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 81205-BACN10JC MANUFACTURERS STANDARD |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.221 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| BRH10C3D | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| BACN10JC3CD | Huck International, Inc (USA) |
| BRH10C3D PRIMARY | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| BACN10JC3CD PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| BRH10C3D | Boeing Defence Australia Ltd (AUS) |
| BACN10JC3CD | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| NS202486-02 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BRH10030 | C/1 Advisory reference — outside the item-of-supply concept Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems |
| BACN10JC3CD | 5/2 Secondary reference U.S. Government activity |
| 102LH9075-3W | 5/9 Secondary reference Harvard Industries Inc |
| BRH10C3D | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| T6C1032CD | 5/9 Secondary reference Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace |
| H51650-3BAC | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| NS202486-02 | 3/2 Design control — primary reference U.S. Government activity |
| BACN10JC3CD | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-01-199-0261 is a Nut,self-Locking,hexagon, manufactured by Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-199-0261 has 6 manufacturer part numbers on file: BRH10C3D (Boeing Defence Australia Ltd Div Defense, Space & Security), BACN10JC3CD (Huck International, Inc), BRH10C3D (Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems), BACN10JC3CD (Howmet Global Fastening Systems Inc), BRH10C3D (Boeing Defence Australia Ltd) and 1 more.
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-669-6870, 5310-01-684-5591. Verify interchangeability with system specifications before substitution.
Key specifications for BRH10C3D: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 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.