The Nut,self-Locking,castellated,hex, cataloged under National Stock Number 5310-01-558-9718, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-558-9718 |
| Primary Part Number | 101346 |
| Item Name | Nut,self-Locking,castellated,hex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052 |
| Status | ACTIVE |
| Hole Thread Quantity Per Inch | 16 |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Surface Treatment | ZINC OVERALL EXCEPT INSERT |
| Nut Style | CASTELLATED, HEXAGON |
| Hole Nominal Thread Diameter | 0.375 INCHES IN |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Bearing Surface Type | FLAT |
| Hole Type and Quantity | 1 TAPPED |
| 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 |
|---|---|
| 101346 PRIMARY | Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052 (USA) |
NSN 5310-01-558-9718 is a Nut,self-Locking,castellated,hex, manufactured by Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-558-9718 has 1 manufacturer part number on file: 101346 (Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052).
Key specifications for 101346: Hole Thread Quantity Per Inch: 16; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 INCHES IN. 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.