The Nut,self-Locking,double Hexagon, cataloged under National Stock Number 5310-01-443-9839, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-443-9839 |
| Primary Part Number | BH00598-12 |
| Item Name | Nut,self-Locking,double Hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.200 INCHES MINIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Special Test Features | FLIGHT SAFETY CRITICAL |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Supplementary Features | HEAT TREATMENT: HARDNESS RC-38-45; FINISH: CADMIUM PLATE PER QQ-P-416, TYPE II, CLASS 2, PLUS MOLYBDENUM DISULFIDE DRY FILM LUBRICANT |
| Criticality Code Justification | SPCL |
| Hole Configuration Style | CONFIGURATION G |
| Nominal Thread Size | 0.750 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| BH00598-12 PRIMARY | Bristol Industries, Llc (USA) |
| H54657-12 | Howmet Global Fastening Systems Inc. Div Microdot Products (USA) |
| HS5763-12 | Houston Precision Fasteners I Lp (USA) |
| H54657-12 | Howmet Global Fastening Systems Inc (USA) |
| HS5763-12 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| HS5763-12 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SLN127-12 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| HS5763-12 | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| SPS-N-53568-12 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HS5763-12 | 7/2 Vendor item drawing reference The Boeing Company |
| EWSN26M-12 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VN5400A12 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| HS5763-12 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| H54657-12 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5310-01-443-9839 is a Nut,self-Locking,double Hexagon, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-443-9839 has 8 manufacturer part numbers on file: BH00598-12 (Bristol Industries, Llc), H54657-12 (Howmet Global Fastening Systems Inc. Div Microdot Products), HS5763-12 (Houston Precision Fasteners I Lp), H54657-12 (Howmet Global Fastening Systems Inc), HS5763-12 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok) and 3 more.
Key specifications for BH00598-12: Width Across Flats: 1.200 INCHES MINIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Special Test Features: FLIGHT SAFETY CRITICAL. 13 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.