The Bearing,ball,annular, cataloged under National Stock Number 3110-00-540-8486, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-540-8486 |
| Primary Part Number | 21D327 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Internal Clearance | 0.0016 INCHES MINIMUM RADIAL AND 0.0035 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Bore Shape | STRAIGHT |
| Contact Angle | 25.0 DEGREES MINIMUM |
| Load Direction | ANGULAR |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL BALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3110-00-540-8486 is a Bearing,ball,annular, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-540-8486 has 4 manufacturer part numbers on file: 455741 (Skf Usa Inc.), 21D327 (Curtiss-Wright Controls, Inc. Div Actuation Division), 9125UK14 (Skf Usa Inc.), 450711 (Skf Usa Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 1560-01-135-8967, 6515-01-473-1600. Verify interchangeability with system specifications before substitution.
Key specifications for 21D327: Retainer Fabrication Method: MACHINED; Internal Clearance: 0.0016 INCHES MINIMUM RADIAL AND 0.0035 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND; Bore Shape: STRAIGHT. 10 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.