The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-168-1772, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. Government technical data includes 24 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-168-1772 |
| Primary Part Number | BGC464C4-12 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE CHANNEL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Quantity | 48 |
| Removable Nut Manufacturer Part Number | ST3M445C4M4 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL |
| Nut Counterbore Depth | 0.225 INCHES MINIMUM NUT IN |
| Channel Height | 0.298 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.254 INCHES MINIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.466 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE CHANNEL |
| Surface Treatment | NICKEL OR CHROMATE ZINC NUT |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 NUT |
| Material | STEEL COMP 321 CHANNEL |
| Nut Spacing | 1.500 INCHES NOMINAL IN |
| Channel Style | STRAIGHT TYPE |
| Removable Nut Manufacturer Code | 76301 |
| 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 |
|---|---|
| BGC464C4-12 PRIMARY | Bristol Industries, Llc (USA) |
| G49250E4-4-12 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| G18421L4-4-12 | 5/9 Secondary reference Harvard Industries Inc |
| 3M464C12A48-4P | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| C17054-4-12 | 5/9 Secondary reference U.S. Government activity |
| 10109951 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3M464C12A48-4 | 5/9 Secondary reference The Boeing Company Div Defense |
| C170S4-4-12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-168-1772 is a Nut Assembly,self-Locking,gang C, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-168-1772 has 2 manufacturer part numbers on file: BGC464C4-12 (Bristol Industries, Llc), G49250E4-4-12 (Howmet Global Fastening Systems Inc).
Key specifications for BGC464C4-12: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Nut Quantity: 48. 24 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.