The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-463-1849, 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. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-463-1849 |
| Primary Part Number | SLN146-12V |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 1.221 INCHES MAXIMUM IN |
| Width Across Flats | 0.929 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-8837, TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Washer Thickness | 0.120 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5662 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5663 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| 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 |
|---|---|
| HS5489-12V | Howmet Global Fastening Systems Inc (USA) |
| BH00589-12V | Bristol Industries, Llc (USA) |
| SLN146-12V PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 93902-12V | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HS5489-12V | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS5489-12V | 7/2 Vendor item drawing reference The Boeing Company |
NSN 5310-01-463-1849 is a Nut,self-Locking,extended Washer, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-463-1849 has 4 manufacturer part numbers on file: HS5489-12V (Howmet Global Fastening Systems Inc), BH00589-12V (Bristol Industries, Llc), SLN146-12V (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 93902-12V (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for SLN146-12V: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.750 INCHES MAXIMUM IN; Washer Outside Diameter: 1.221 INCHES MAXIMUM IN; Width Across Flats: 0.929 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN. 16 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.