The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-390-9003, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-390-9003 |
| Primary Part Number | 03A183N8A7-1 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Surface Treatment Document and Classification | MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Quantity | 72 |
| Nut Counterbore Depth | 0.070 INCHES MINIMUM FIRST END IN |
| Features Provided | FLOATING NUT |
| Channel Height | 0.250 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.194 INCHES MINIMUM FIRST END IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.230 INCHES MAXIMUM IN |
| Surface Treatment | PLASTIC EPOXY AND PLASTIC POLYAMIDE CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Material | ALUMINUM ALLOY 7075 CHANNEL |
| Material | STEEL COMP 303 CLIP |
| Nut Spacing | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM 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 |
|---|---|
| 03A183N8A7-1 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| BGC183N1-8-7 | Bristol Industries, Llc (USA) |
| G52941-3-1-8-7 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| G13742J1-3-87 | 5/9 Secondary reference Harvard Industries Inc |
| G5294-3-1-8-7 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| C190-3-1-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-390-9003 is a Nut Assembly,self-Locking,gang C, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-390-9003 has 3 manufacturer part numbers on file: 03A183N8A7-1 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), BGC183N1-8-7 (Bristol Industries, Llc), G52941-3-1-8-7 (Howmet Global Fastening Systems Inc).
Key specifications for 03A183N8A7-1: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Nut Quantity: 72. 21 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.