The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-187-1940, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Kaydon Corporation Dba Kaydon Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-187-1940 |
| Primary Part Number | 5092021 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Kaydon Corporation Dba Kaydon Corp |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING INNER RACE |
| Overall Outside Diameter | 4.4997 INCHES MINIMUM AND 4.5000 INCHES MAXIMUM IN |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING |
| Material | OIL LUBRICATION |
| Lubrication Material Document and Classification | MIL-L-81846 MIL SPEC SINGLE MATERIAL RESPONSE |
| Surface Finish | GROUND |
| Material | STEEL CORROSION RESISTING BALL |
| Contact Angle | 30.0 DEGREES NOMINAL |
| Bore Diameter | 3.9997 INCHES MINIMUM AND 4.0000 INCHES MAXIMUM IN |
| Load Direction | ANGULAR |
| Retainer Fabrication Method | PRESSED |
| Bearing Preload Rating | 30.0 POUNDS NOMINAL LBS |
| Material | STEEL CORROSION RESISTING OUTER RACE |
| Material | PLASTIC PHENOLIC SEPARATOR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3110-01-187-1940 is a Bearing,ball,duplex, manufactured by Kaydon Corporation Dba Kaydon Corp, classified under FSC 3110 (No Item Name Available). Status: active.
NSN 3110-01-187-1940 has 3 cross-referenced part numbers: 5092021 (Kaydon Corporation Dba Kaydon Corp), 930025 (Lockheed Martin Corp Electronics and Missiles Div), 930025 (Mpb Corp Div Timken Super Precision).
There are 3 known substitutes for 3110-01-187-1940: 5920-00-617-6662, 5998-01-362-3435, 3910-01-598-9254. Verify interchangeability with system specifications before substitution.
Key specifications for 5092021: Material: STEEL CORROSION RESISTING INNER RACE; Overall Outside Diameter: 4.4997 INCHES MINIMUM AND 4.5000 INCHES MAXIMUM IN; Overall Width: 0.4700 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN; Style Designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. 15 total characteristics are documented in the Federal Logistics Information System.