The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-134-8731, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Vertex Modernization and Sustainment Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-134-8731 |
| Primary Part Number | 3929AS1235-12 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Vertex Modernization and Sustainment Llc |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL1.125 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM38.0 ROCKWELL C MAXIMUM |
| Hole Configuration Style | CONFIGURATION BCONFIGURATION B |
| Material Document and Classification | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALLMIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES0.750 INCHES IN |
| Nut Height | 0.312 INCHES NOMINAL0.312 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.069 INCHES MINIMUM AND 0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM0.074 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CADMIUM AND CHROMATE OVERALLCHROMATE OVERALL |
| Nut Style | HEXAGONHEXAGON |
| Thread Class | 3B3B |
| Thread Quantity Per Inch | 1616 |
| Material | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| Bearing Surface Type | CHAMFEREDCHAMFERED |
| Hole Type and Quantity | 3 DRILLED3 DRILLED |
| 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 |
|---|---|
| 3929AS1235-12 PRIMARY | Vertex Modernization and Sustainment Llc (USA) |
| 3929AS1235-12 | Starwin Industries, Llc (USA) |
| 3929AS1235-12 | Utah Pacific Construction, Co. (USA) |
| Reference | Meaning |
|---|---|
| 3M966-12 | 5/9 Secondary reference Reusable Envelope Inc |
| 3M966-12 | 5/9 Secondary reference Unirex, Inc. |
| 3929AS1235-12 | 5/2 Secondary reference U.S. Government activity |
| 3M966-12 | 5/9 Secondary reference The Boeing Company Div Defense |
| 10109709 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3929AS1235-12 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 3M966-12 | 5/9 Secondary reference U.S. Government activity |
| 3M966-12 | 5/9 Secondary reference Starwin Industries, Llc |
NSN 5310-01-134-8731 is a Nut,plain,hexagon, manufactured by Vertex Modernization and Sustainment Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-134-8731 has 3 manufacturer part numbers on file: 3929AS1235-12 (Vertex Modernization and Sustainment Llc), 3929AS1235-12 (Starwin Industries, Llc), 3929AS1235-12 (Utah Pacific Construction, Co.).
Key specifications for 3929AS1235-12: Width Across Flats: 1.125 INCHES NOMINAL1.125 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF); Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM38.0 ROCKWELL C MAXIMUM. 17 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.