bearings › airframe ball bearings
MS27644-4
Bearing
Description
Heavy duty double row anti-friction airframe bearing
Specifications
| Alternate Part Number | DPP4 |
|---|---|
| Bore Diameter | 0.2500 |
| Material | CRES |
| Material Specification | 66 federal standard all material responses ball, Ams 3652 assn standard single material response seal or ams 3666 assn standard single material response seal |
| NIIN | 00-042-4571 |
| NSN | 3110-00-042-4571 |
| Special Features | 0.0016 in outer ring radial and lateral eccentrici type 0.0010 in. inner ring heat treat rings and balls to rockwell c 60 to 66 and stabilized for operation at 250 degrees f axial play 0.006 in. r80 pct. full of mil-g-81322' |
| Style Designator | Double row |
| Surface Treatment | Cadmium exposed surfaces as mounted |
| Surface Treatment Specification | Cl 2 federal specification single treatment response exposed surfaces as mounted type 1 qq-p-416 |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS27644-4
- MS27644-8
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS27644-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error