NSN 6650-00-172-5983

Part Details | OPTICAL ELEMENT RETAINER

6650-00-172-5983 A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.

Alternate Parts: 178AS171, 6650-00-172-5983, 00-172-5983, 6650001725983, 001725983

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66SEP 01, 197200-172-598322451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

RECESSED

Cross Reference | NSN 6650-00-172-5983
Part Number Cage Code Manufacturer
178AS17130003NAVAL AIR SYSTEMS COMMAND MANAGEDORIGINAL DESIGN ACTIVITY NOT
Technical Data | NSN 6650-00-172-5983
Characteristic Specifications
STYLE DESIGNATOR RECESSED
HOLE DIAMETER0.250 INCHES NOMINAL
OVERALL LENGTH0.380 INCHES NOMINAL
THREAD SIZE0.375 IN. -24 UNF 2A
FSC APPLICATION DATASPECIALLY DESIGNED,ACFT ARMAMENT