The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-234-3795, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Link-Belt Cranes, L.p., Lllp. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-234-3795 |
| Primary Part Number | 1X4638 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Link-Belt Cranes, L.p., Lllp |
| Status | ACTIVE |
| Width Across Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM B633,TYPE 1,CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hardness Rating | 32.0 ROCKWELL C NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.229 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Surface Treatment | ZINC NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL NUT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| 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 |
|---|---|
| 1X4638 PRIMARY | Link-Belt Cranes, L.p., Lllp (USA) |
| 21NM-04 | Acf Components & Fasteners, Inc. Dba Acf Industrial Solutions (USA) |
| 21NM-04 | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 21NM-04 | 5/9 Secondary reference Harvard Industries Inc |
| 1X4368 | C/1 Advisory reference — outside the item-of-supply concept Link-Belt Cranes, L.p., Lllp |
NSN 5310-01-234-3795 is a Nut,self-Locking,hexagon, manufactured by Link-Belt Cranes, L.p., Lllp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-234-3795 has 3 manufacturer part numbers on file: 1X4638 (Link-Belt Cranes, L.p., Lllp), 21NM-04 (Acf Components & Fasteners, Inc. Dba Acf Industrial Solutions), 21NM-04 (Esna, Llc).
Key specifications for 1X4638: Width Across Flats: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM B633,TYPE 1,CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE NUT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Hardness Rating: 32.0 ROCKWELL C NOMINAL. 15 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.