The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-550-4372, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 9 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-550-4372 |
| Primary Part Number | MJ82 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | AMS 4121 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.266 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE NUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | FIBER LOCKING INSERT |
| Material | ALUMINUM ALLOY 2014 NUT |
| 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 |
|---|---|
| GN10V832 | Northrop Grumman Systems Corporation (USA) |
| MJ82 PRIMARY | Esna, Llc (USA) |
| 203MR18P003 | Raytheon Company Dba Raytheon Co (USA) |
| 203MS018P003 | Raytheon Company Dba Raytheon Co (USA) |
| 203MR018P003 | Raytheon Company Dba Raytheon Co (USA) |
| 203MR18P3 | Raytheon Company Dba Raytheon Co (USA) |
| 203MR18P3 | Raytheon Company Dba Raytheon Co (USA) |
| 203MR18P003 | Raytheon Company Dba Raytheon Co (USA) |
| 203MS018P003 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| MJ82 | 5/9 Secondary reference Harvard Industries Inc |
| 203MR018P003 | 5/9 Secondary reference Raytheon Co Missile Systems Div Lowell Plant |
| 203MR18P3 | 5/9 Secondary reference Raytheon Company Div Corp |
| 203MR018P003 | 5/9 Secondary reference Raytheon Company Div Corp |
| 203MR18P003 | 5/9 Secondary reference Raytheon Company Div Corp |
| 203MS018P003 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5310-00-550-4372 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-550-4372 has 9 manufacturer part numbers on file: GN10V832 (Northrop Grumman Systems Corporation), MJ82 (Esna, Llc), 203MR18P003 (Raytheon Company Dba Raytheon Co), 203MS018P003 (Raytheon Company Dba Raytheon Co), 203MR018P003 (Raytheon Company Dba Raytheon Co) and 4 more.
Key specifications for MJ82: Width Across Flats: 0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: AMS 4121 ASSN STD SINGLE MATERIAL RESPONSE NUT; 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.