The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-057-9350, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Whittet-Higgins Company. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-057-9350 |
| Primary Part Number | BHM-10 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Whittet-Higgins Company |
| Status | ACTIVE |
| Thread Series | UNS |
| Thread Pitch Diameters | +1.9309 TO 1.9354 INCHES IN |
| Drive Point Width | 0.230 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.967 INCHES IN |
| Nut Diameter | 2.673 INCHES MINIMUM AND 2.688 INCHES MAXIMUM IN |
| Drive Point Depth | 0.089 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Undercut Thickness | 0.141 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN |
| Small End Diameter | 2.344 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| Material | PLASTIC LOCKING INSERT |
| Material | STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1213 OR STEEL COMP 1215 NUT |
| 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 |
|---|---|
| BHM-10 PRIMARY | Whittet-Higgins Company (USA) |
| Reference | Meaning |
|---|---|
| BHM 10 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 81581-M | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-057-9350 is a Nut,self-Locking,round, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-057-9350 has 1 manufacturer part number on file: BHM-10 (Whittet-Higgins Company).
Key specifications for BHM-10: Thread Series: UNS; Thread Pitch Diameters: +1.9309 TO 1.9354 INCHES IN; Drive Point Width: 0.230 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND. 16 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.