The Nut,self-Locking,double Hexagon, cataloged under National Stock Number 5310-01-541-8768, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-541-8768 |
| Primary Part Number | HS6137-9 |
| Item Name | Nut,self-Locking,double Hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.987 INCHES MINIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Nut Height | 0.706 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 8740 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 |
|---|---|
| HS6137-9 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HS6137-9 | Houston Precision Fasteners I Lp (USA) |
| HS6137-9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HS6137-9 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| H56351-12 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| H56351-9 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 95855-9 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HS6137-9 | 7/2 Vendor item drawing reference The Boeing Company |
NSN 5310-01-541-8768 is a Nut,self-Locking,double Hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-541-8768 has 4 manufacturer part numbers on file: HS6137-9 (Reid Products Inc. Dba Reid Products Inc), HS6137-9 (Houston Precision Fasteners I Lp), HS6137-9 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HS6137-9 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HS6137-9: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.987 INCHES MINIMUM IN; Surface Treatment Document and Classification: AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 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.