The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-022-9003, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-022-9003 |
| Primary Part Number | BH-02 |
| 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 | +0.5657 TO 0.5687 INCHES IN |
| Material Document and Classification | AISI ASSN STD 2ND MATERIAL RESPONSE OVERALL EXCEPT 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 | 0.141 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Thickness | 0.343 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1118 OR STEEL COMP 1213 OR STEEL COMP 1215 OVERALL EXCEPT 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 |
|---|---|
| BH-02 PRIMARY | Whittet-Higgins Company (USA) |
| Reference | Meaning |
|---|---|
| 12292784-1 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5310-01-022-9003 is a Nut,self-Locking,round, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-022-9003 has 1 manufacturer part number on file: BH-02 (Whittet-Higgins Company).
1 possible match (shared part number, not a government interchangeability claim): 4030-01-176-8032. Verify interchangeability with system specifications before substitution.
Key specifications for BH-02: Thread Series: UNS; Thread Pitch Diameters: +0.5657 TO 0.5687 INCHES IN; Material Document and Classification: AISI ASSN STD 2ND MATERIAL RESPONSE OVERALL EXCEPT INSERT; Drive Point Width: 0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN. 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.