The Nut,plain,square, cataloged under National Stock Number 5310-00-424-8350, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dressta North America Ltd. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-424-8350 |
| Primary Part Number | 616192C1 |
| Item Name | Nut,plain,square |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dressta North America Ltd |
| Status | ACTIVE |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | CASEHARDENED |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 0.688 INCHES NOMINAL IN |
| Nut Style | SQUARE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1115 OR STEEL COMP 1117 OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 616192C1 | Dressta North America Ltd (USA) |
| Reference | Meaning |
|---|---|
| 263981R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 263981R1 | 5/9 Secondary reference U.S. Government activity |
| 60221DA | 3/9 Design control — primary reference Navistar International Corporation Dba Navistar |
NSN 5310-00-424-8350 is a Nut,plain,square, manufactured by Dressta North America Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-424-8350 has 1 manufacturer part number on file: 616192C1 (Dressta North America Ltd).
Key specifications for 616192C1: Width Across Flats: 0.875 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Features Provided: CASEHARDENED. 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.