The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-018-5632, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Atec Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-018-5632 |
| Primary Part Number | 103-3074-1 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Atec Inc |
| Status | ACTIVE |
| Width Across Flats | 1.687 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hole Configuration Style | CONFIGURATION B |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.125 INCHES IN |
| Nut Height | 0.609 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.080 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 7 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED |
| Hole Type and Quantity | 2 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 |
|---|---|
| 103-3074-1 PRIMARY | Atec Inc (USA) |
| Reference | Meaning |
|---|---|
| 103-3074-1 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 5310-01-018-5632 is a Nut,plain,hexagon, manufactured by Atec Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-018-5632 has 1 manufacturer part number on file: 103-3074-1 (Atec Inc).
Key specifications for 103-3074-1: Width Across Flats: 1.687 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Hole Configuration Style: CONFIGURATION B; Thread Direction: RIGHT-HAND. 14 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.