The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-239-9412, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-239-9412 |
| Primary Part Number | 90101A007 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 0.313 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Nut Height | 0.125 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OR STEEL COMP 304 OR STEEL COMP 304H OR STEEL COMP E4340 OVERALL EXCEPT INSERT |
| Bearing Surface Type | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-239-9412 is a Nut,plain,hexagon, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-239-9412 has 2 manufacturer part numbers on file: 90101A007 (Mcmaster-Carr Supply Co), 90101A007 (Mcmaster-Carr Supply Company).
Key specifications for 90101A007: Width Across Flats: 0.313 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT; 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.