The Nut,self-Locking,double Hexagon, cataloged under National Stock Number 5310-01-441-4542, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Howmet Global Fastening Systems Inc (CAGE 15653); Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (CAGE 16258); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Bristol Industries, Llc (CAGE 27238); Boeing Distribution Services Defense Llc (CAGE 3G1W3) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-441-4542 |
| Primary Part Number | HS5763-6 |
| Item Name | Nut,self-Locking,double Hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| 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 |
|---|---|
| H54657-6 | Howmet Global Fastening Systems Inc (USA) |
| HS5763-6 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| HS5763-6 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HS5763-6 PRIMARY | Bristol Industries, Llc (USA) |
| 94010-624-S | Boeing Distribution Services Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| SPS-N-53568-6 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HS5763-6 | 7/2 Vendor item drawing reference The Boeing Company |
| BH00598-6 | 5/9 Secondary reference Bristol Industries, Llc |
| HS5763-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| SLN127-6 | 5/9 Secondary reference Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| GRMLH6521-6 | 5/9 Secondary reference U.S. Government activity |
| HS5763-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| H54657-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| H54657-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| HS5763-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| HS5763-6 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5310-01-441-4542 is a Nut,self-Locking,double Hexagon, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-441-4542 has 5 manufacturer part numbers on file: H54657-6 (Howmet Global Fastening Systems Inc), HS5763-6 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), HS5763-6 (Sps Technologies, Llc Dba PB Fasteners), HS5763-6 (Bristol Industries, Llc), 94010-624-S (Boeing Distribution Services Defense Llc).
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.