287281: LENS BLANK,OPHTHALMIC,MULTIFOCAL.
LENS BLANK,OPHTHALMIC,MULTIFOCAL. Key specifications include end_item_identification: 6540-01-604-9603 OPHTHALMIC LENS FABRICATION SYSTEM, part_name_assigned_by_controlling_agency: LENS MULTIFOCAL 75MM FT28 4 BASE 2.25 ADD RIGHT MM. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-639-4804, 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.
| special_features | MULTIFOCAL LENS 75 MM FT28 4 BASE 2.25 ADD RIGHT; FOR USE WITH END ITEM NSN 6540-01-604-9603 MULTIVISION FABRICATION SYSTEM MM |
| end_item_identification | 6540-01-604-9603 OPHTHALMIC LENS FABRICATION SYSTEM |
| part_name_assigned_by_controlling_agency | LENS MULTIFOCAL 75MM FT28 4 BASE 2.25 ADD RIGHT MM |
| NSN | 5305-00-639-4804 |
| HEAD HEIGHT | 0.055 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.219 INCHES NOMINAL IN |
| THREAD LENGTH | 0.219 INCHES MAXIMUM IN |
| SUPPLEMENTARY FEATURES | 5 SEP. 00 ITEM REVIEWED UNDER GIRDER PROJECT; COUNTRY NON-CONCUR CANCELLATION ACTION |
| NOMINAL THREAD DIAMETER | 0.086 INCHES IN |
| HEAD STYLE | FILLISTER |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | COPPER ALLOY |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| THREAD CLASS | 2A A |
No substitute or cross-reference records for this part.