The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-690-9942, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fabory Usa Ltd.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-690-9942 |
| Primary Part Number | U55081.031.0001 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fabory Usa Ltd. |
| Status | ACTIVE |
| Width Across Flats | 0.563 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | ASTM F594 316 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Nut Height | 0.297 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | CW |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 316 OVERALL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| U55081.031.0001 PRIMARY | Fabory Usa Ltd. (USA) |
NSN 5310-01-690-9942 is a Nut,plain,hexagon, manufactured by Fabory Usa Ltd., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-690-9942 has 1 manufacturer part number on file: U55081.031.0001 (Fabory Usa Ltd.).
Key specifications for U55081.031.0001: Width Across Flats: 0.563 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: ASTM F594 316 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 11 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.