The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-182-6613, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 11 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-182-6613 |
| Primary Part Number | VCO-0001 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | GEN.ELEC.-50TF19 CL-D MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Criticality Code Justification | FEAT |
| Washer Thickness | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Material Document and Classification | GEN.ELEC.B50TF15 CL-B MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| VCO-0001 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 9984M59P01 | General Electric Company (USA) |
| H50765-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| BA17030-01 | Blanc Aero Industries - Groupe Lisi Aerospace (FRA) |
| Reference | Meaning |
|---|---|
| 998459O05 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| VN735YB064 | 5/9 Secondary reference U.S. Government activity |
| 9984M59P05 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| 9984M59P05 | 5/9 Secondary reference General Electric Company |
| 9984M59P03 | 5/9 Secondary reference General Electric Company |
NSN 5310-01-182-6613 is a Nut,self-Locking,extended Washer, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-182-6613 has 4 manufacturer part numbers on file: VCO-0001 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 9984M59P01 (General Electric Company), H50765-6 (Howmet Global Fastening Systems Inc), BA17030-01 (Blanc Aero Industries - Groupe Lisi Aerospace).
Key specifications for VCO-0001: Overall Height: 0.630 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN; Width Across Flats: 0.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: GEN.ELEC.-50TF19 CL-D MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 11 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.