The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-413-7399, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Unifin International Inc Div of Wabtec Canada Inc Div Unifin International. 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 | 5310-01-413-7399 |
| Primary Part Number | R6-1028 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Unifin International Inc Div of Wabtec Canada Inc Div Unifin International |
| Status | ACTIVE |
| Width Across Flats | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-C-591 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Specification/standard Data | 96906-MIL-S-1221, TY2, STYLE B GOVERNMENT SPECIFICATION |
| Nut Height | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 13 |
| Material | COPPER ALLOY 651 OR COPPER ALLOY 655 OR COPPER ALLOY 661 OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| R6-1028 PRIMARY | Unifin International Inc Div of Wabtec Canada Inc Div Unifin International (CAN) |
| 011190A400 ITEM 18 PRIMARY | Unifin International Inc Div of Wabtec Canada Inc Div Unifin International (CAN) |
NSN 5310-01-413-7399 is a Nut,plain,hexagon, manufactured by Unifin International Inc Div of Wabtec Canada Inc Div Unifin International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-413-7399 has 2 manufacturer part numbers on file: R6-1028 (Unifin International Inc Div of Wabtec Canada Inc Div Unifin International), 011190A400 ITEM 18 (Unifin International Inc Div of Wabtec Canada Inc Div Unifin International).
Key specifications for R6-1028: Width Across Flats: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-C-591 FED SPEC ALL MATERIAL RESPONSES OVERALL; 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.