The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-052-9160, 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 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-052-9160 |
| Primary Part Number | BHS-10 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Whittet-Higgins Company |
| Status | ACTIVE |
| Thread Series | UNS |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.967 INCHES IN |
| Nut Diameter | 2.688 INCHES NOMINAL IN |
| Drive Point Depth | 0.094 INCHES NOMINAL IN |
| Undercut Thickness | 0.141 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.562 INCHES NOMINAL IN |
| Small End Diameter | 2.344 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 1018 OR STEEL COMP 4140 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 |
|---|---|
| 81581-M | Whittet-Higgins Company (USA) |
| 3404-9ITEM54 | General Dynamics Corp Qunicy Shipbuilding Div (USA) |
| 81581-M | General Dynamics Corp Qunicy Shipbuilding Div (USA) |
| BHS-10 PRIMARY | Whittet-Higgins Company (USA) |
| Reference | Meaning |
|---|---|
| 3444-10 ITEM 49 | 5/9 Secondary reference U.S. Government activity |
| 3444-10 ITEM 49 | 5/2 Secondary reference U.S. Government activity |
| 81581-M | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-052-9160 is a Nut,self-Locking,round, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-052-9160 has 4 manufacturer part numbers on file: 81581-M (Whittet-Higgins Company), 3404-9ITEM54 (General Dynamics Corp Qunicy Shipbuilding Div), 81581-M (General Dynamics Corp Qunicy Shipbuilding Div), BHS-10 (Whittet-Higgins Company).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-057-9350. Verify interchangeability with system specifications before substitution.
Key specifications for BHS-10: Thread Series: UNS; Drive Point Width: 0.250 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.967 INCHES IN. 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.