The 591B1-1 is a the manufacturer industrial component. Key specifications include chain: NOT INCLUDED, insert: NOT INCLUDED, length: 0.110 INCHES NOMINAL IN, diameter: 0.437 INCHES NOMINAL IN, material: PLASTIC BODY, thread_size: 7/16-20. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-264-7968, 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.
| chain | NOT INCLUDED |
| insert | NOT INCLUDED |
| length | 0.110 INCHES NOMINAL IN |
| diameter | 0.437 INCHES NOMINAL IN |
| material | PLASTIC BODY |
| thread_size | 7/16-20 |
| usage_design | CAP FOR BRUSH ASSY |
| mounting_method | THREAD |
| special_features | COUNTER SINK AND TAPPED FOR NO 2-56 FLATHEAD SCREW IN CENTER OF CAP,NO 2-56 NUT AND SOLDER LUG MOUNT ON SCREW |
| end_item_identification | TYPE NO. PP-802/UPM-4A A |
| NSN | 5999-00-264-7968 |
| THREAD SIZE | 7/16-20 |
| CHAIN | NOT INCLUDED |
| END ITEM IDENTIFICATION | TYPE NO. PP-802/UPM-4A A |
| SPECIAL FEATURES | COUNTER SINK AND TAPPED FOR NO 2-56 FLATHEAD SCREW IN CENTER OF CAP,NO 2-56 NUT AND SOLDER LUG MOUNT ON SCREW |
| DIAMETER | 0.437 INCHES NOMINAL IN |
| INSERT | NOT INCLUDED |
| LENGTH | 0.110 INCHES NOMINAL IN |
| MOUNTING METHOD | THREAD |
| USAGE DESIGN | CAP FOR BRUSH ASSY |
| MATERIAL | PLASTIC BODY |