The Nut,plain,round, cataloged under National Stock Number 5310-00-346-4801, 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 18 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-346-4801 |
| Primary Part Number | 68A410649-2001 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE OR MMS-420,FSCM 76301 MFR REF 3RD TREATMENT RESPONSE OVERALL EXCEPT THREADS |
| Surface Treatment Document and Classification | PS13144,TYPE 1,CLASS 2,FSCM 76301 MFR REF 1ST TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Material Document and Classification | AMS 6419 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.380 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 5.625 INCHES IN |
| Nut Diameter | 6.375 INCHES NOMINAL IN |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Nut Thickness | 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Surface Treatment | PAINT OR ENAMEL OVERALL EXCEPT THREADS |
| Countersink Angle | 90.0 DEGREES NOMINAL NUT |
| Drive Point Quantity | 6 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 68A410649-2001 | Heroux-Devtek Inc (CAN) |
| 68A410649-2001 | Hdi Landing Gear Usa Inc (USA) |
| 68A410649-2001 | Es3 Prime Logistics Group Inc Dba Es3 Plg (USA) |
| 68A410649-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 68A410649-2001 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 68A410649-2001 | Alta Precision Inc (CAN) |
| 68A410649-2001 | Machine Specialties, Llc (USA) |
| Reference | Meaning |
|---|---|
| 68A410649-2001 | 5/2 Secondary reference U.S. Government activity |
| 68A410649-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
NSN 5310-00-346-4801 is a Nut,plain,round, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-346-4801 has 7 manufacturer part numbers on file: 68A410649-2001 (Heroux-Devtek Inc), 68A410649-2001 (Hdi Landing Gear Usa Inc), 68A410649-2001 (Es3 Prime Logistics Group Inc Dba Es3 Plg), 68A410649-2001 (The Boeing Company Div Defense), 68A410649-2001 (Cm Manufacturing Inc Dba Cm Manufacturing Inc) and 2 more.
Key specifications for 68A410649-2001: Surface Treatment Document and Classification: MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE OR MMS-420,FSCM 76301 MFR REF 3RD TREATMENT RESPONSE OVERALL EXCEPT THREADS; Surface Treatment Document and Classification: PS13144,TYPE 1,CLASS 2,FSCM 76301 MFR REF 1ST TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Material Document and Classification: AMS 6419 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 18 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.