The SL-4221 PIECES 38,40,41 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-218-3454, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
| Part Number | SL-4221 PIECES 38,40,41 |
| NSN | 4320-00-218-3454 |
| DESIGN TYPE | SINGLE WIDTH |
| OVERALL WIDTH | 3.000 INCHES NOMINAL IN |
| HUB BORE DIAMETER | 1.875 INCHES NOMINAL IN |
| KEYWAY WIDTH | 0.375 INCHES NOMINAL IN |
| OVERALL DIAMETER | 9.250 INCHES NOMINAL IN |
| ROTATION DIRECTION FOR WHICH DESIGNED | CLOCKWISE |
| MOUNTING METHOD | KEY |
| KEYWAY TYPE | RECTANGULAR |
| KEYWAY LENGTH | 3.000 INCHES NOMINAL IN |
| SPECIAL FEATURES | SECOND STAGE,LEFT-HAND BLADES; WEAR RING W/SET SCREW PROVIDED |