The Nut,self-Locking,double Hexagon, cataloged under National Stock Number 5310-01-184-0356, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. The record lists 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Nut,self-Locking,double Hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Bristol Industries, Llc (CAGE 27238); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Leonardo Spa Helicopters Division - Production Site (CAGE A0126); Howmet Global Fastening Systems Inc (CAGE 15653) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-184-0356 |
| Primary Part Number | BH00775-4 |
| Item Name | Nut,self-Locking,double Hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| BH00775-4 PRIMARY | Bristol Industries, Llc (USA) |
| FN22M-428 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HS4143-2 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| VN470A048 | Howmet Global Fastening Systems Inc (USA) |
| HS4143-2 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| HS4143-2 | 5/2 Secondary reference U.S. Government activity |
| PBF1393-2 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| FN22M428 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| HS4143-2 | 7/2 Vendor item drawing reference The Boeing Company |
| 642AS0669-2 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| HS4143-2 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5310-01-184-0356 is a Nut,self-Locking,double Hexagon, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-184-0356 has 5 manufacturer part numbers on file: BH00775-4 (Bristol Industries, Llc), FN22M-428 (Sps Technologies, Llc Dba PB Fasteners), HS4143-2 (Leonardo Spa Helicopters Division - Production Site), VN470A048 (Howmet Global Fastening Systems Inc), HS4143-2 (Howmet Global Fastening Systems Inc).
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.