The Washer,lock, cataloged under National Stock Number 5310-01-336-6862, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Jlg Industries, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-336-6862 |
| Primary Part Number | P21477 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Jlg Industries, Inc. |
| Status | ACTIVE |
| Style Designator | COUNTERSINK EXTERNAL TEETH |
| Outside Diameter | 0.776 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES NOMINAL IN |
| Countersink Angle | 82.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| Hole Diameter | 0.495 INCHES MINIMUM AND 0.510 INCHES MAXIMUM 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 |
|---|---|
| P21477 PRIMARY | Jlg Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| P21477 | 3/9 Design control — primary reference Lull Lift Corp Dba Omniquip Parts Worldwide |
| 1524-04 | 5/9 Secondary reference Itw Shakeproof Automotive Products |
NSN 5310-01-336-6862 is a Washer,lock, manufactured by Jlg Industries, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-336-6862 has 1 manufacturer part number on file: P21477 (Jlg Industries, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6750-01-427-1471, 4235-01-551-8181. Verify interchangeability with system specifications before substitution.
Key specifications for P21477: Style Designator: COUNTERSINK EXTERNAL TEETH; Outside Diameter: 0.776 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN; Material Thickness: 0.025 INCHES NOMINAL IN; Countersink Angle: 82.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM. 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.