The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-107-2242, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Airlines. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-107-2242 |
| Primary Part Number | 6861200 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Airlines |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.430 INCHES MINIMUM IN |
| Width Across Flats | 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Washer Thickness | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8740 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-00-107-2242 is a Nut,self-Locking,extended Washer, manufactured by Rolls-Royce Airlines, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-107-2242 has 3 manufacturer part numbers on file: 6861200 (Rolls-Royce Airlines), 6861200 (Allison Transmission Inc Dba Allison Transmission, Inc), U129163 (Rolls-Royce Airlines).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-565-4938. Verify interchangeability with system specifications before substitution.
Key specifications for 6861200: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Washer Outside Diameter: 0.430 INCHES MINIMUM IN; Width Across Flats: 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN. 14 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.