The Washer,lock, cataloged under National Stock Number 5310-00-776-6667, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is New Holland N.v.nc.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-776-6667 |
| Primary Part Number | B7A2066A |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | New Holland N.v.nc. |
| Status | ACTIVE |
| Style Designator | DISHED-INTERNAL TEETH |
| Outside Diameter | 0.777 INCHES NOMINAL IN |
| Material Thickness | 0.052 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.141 INCHES NOMINAL IN |
| 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 |
|---|---|
| B7A2066A | New Holland N.v.nc. (USA) |
| Reference | Meaning |
|---|---|
| B7A2066A | 5/9 Secondary reference Ford Motor Company |
| B7A2066A | 3/9 Design control — primary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
NSN 5310-00-776-6667 is a Washer,lock, manufactured by New Holland N.v.nc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-776-6667 has 1 manufacturer part number on file: B7A2066A (New Holland N.v.nc.).
Key specifications for B7A2066A: Style Designator: DISHED-INTERNAL TEETH; Outside Diameter: 0.777 INCHES NOMINAL IN; Material Thickness: 0.052 INCHES NOMINAL IN; Material: STEEL OVERALL. 5 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.