The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-129-0807, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-129-0807 |
| Primary Part Number | H50609-5 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.563 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Washer Thickness | 0.035 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5663 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Drive Point Quantity | 12 |
| Nut Style | SPLINE DRIVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| H50609-5 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| SLN187-5 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 78686-5 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BH752-5 PRIMARY | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| ST3M752-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 10109520 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3929AS1232-5 | 5/9 Secondary reference Vertex Modernization and Sustainment Llc |
| LH12038-5 | 5/9 Secondary reference Harvard Industries Inc |
| 3929AS1232-5 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5310-01-129-0807 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-129-0807 has 4 manufacturer part numbers on file: H50609-5 (Howmet Global Fastening Systems Inc), SLN187-5 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 78686-5 (Sps Technologies, Llc Dba PB Fasteners), BH752-5 (Bristol Industries, Llc).
Key specifications for H50609-5: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.312 INCHES MAXIMUM IN; Washer Outside Diameter: 0.563 INCHES MAXIMUM IN; 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.