The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-363-7256, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-363-7256 |
| Primary Part Number | 3M193C3-2-10-57 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Nut Quantity | 57 |
| Temp Rating | 900.0 FAHRENHEIT MAXIMUM DEGF |
| Nut Counterbore Depth | 0.125 INCHES MINIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Channel Height | 0.203 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.250 INCHES MINIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.312 INCHES MAXIMUM IN |
| Surface Treatment | SILVER NUT |
| Surface Treatment | PASSIVATE CHANNEL |
| Precious Material and Location | OVERALL SILVER |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nut Spacing | 1.250 INCHES MINIMUM IN |
| Channel Style | STRAIGHT TYPE |
| 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 |
|---|---|
| 3M193C3-2-10-57 | Bristol Industries, Llc (USA) |
| G29505-3-2-10 | Howmet Global Fastening Systems Inc (USA) |
| 3M193C3-2-10-57 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5310-01-363-7256 is a Nut Assembly,self-Locking,gang C, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-363-7256 has 3 manufacturer part numbers on file: 3M193C3-2-10-57 (Bristol Industries, Llc), G29505-3-2-10 (Howmet Global Fastening Systems Inc), 3M193C3-2-10-57 (The Boeing Company Div Defense).
Key specifications for 3M193C3-2-10-57: Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Precious Material: SILVER; Nut Quantity: 57; Temp Rating: 900.0 FAHRENHEIT MAXIMUM DEGF. 20 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.