The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-090-7191, 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 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-090-7191 |
| Primary Part Number | BHSS-02 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Whittet-Higgins Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35,TY 1,TY 2,TY 3,TY 4 OR TY 6 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| Thread Series | UNS |
| Thread Pitch Diameters | +0.5657 TO 0.5687 INCHES IN |
| Material Document and Classification | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | L-P-410 FED SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Drive Point Width | 0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.586 INCHES IN |
| Nut Diameter | 0.985 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Drive Point Depth | 0.073 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Undercut Thickness | 0.079 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.344 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Small End Diameter | 0.792 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL EXCEPT INSERT |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 NUT |
| Material | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT |
| 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 |
|---|---|
| 810AS1106-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| BHSS-02 PRIMARY | Whittet-Higgins Company (USA) |
NSN 5310-01-090-7191 is a Nut,self-Locking,round, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-090-7191 has 2 manufacturer part numbers on file: 810AS1106-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), BHSS-02 (Whittet-Higgins Company).
Key specifications for BHSS-02: Surface Treatment Document and Classification: QQ-P-35,TY 1,TY 2,TY 3,TY 4 OR TY 6 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT; Thread Series: UNS; Thread Pitch Diameters: +0.5657 TO 0.5687 INCHES IN; Material Document and Classification: ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE NUT. 20 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.