OPTICAL MIL SPEC PLATE BK7 GLASS OPTICS AS PICTURED #B1-A-20

OPTICAL PLANO GLASS ROUND PLATE OPTICS AS PICTURED &3K-A-20

GLASS CIRCULAR PLATE STAGE FLAT OPTICS AS PICTURED 18-FT-31

OPTICAL SQUARE GLASS BLOCK FROSTED POLISH DULL SIDES OPTICS AS PICTURED &B9-A-21

OPTICAL ZERODUR GLASS FLAT BLANK LASER OPTICS AS PICTURED &F3-A-85

OPTICAL COATED FLAT GLASS FILTER OPTICS AS PICTURED &19-B-02

OPTICAL PLANO GLASS ROUND CHAMFERED PLATE OPTICS AS PICTURED &3K-A-16

OPTICAL GLASS COATED FLAT ROUND WINDOW OPTICS AS PICTURED #82-A-22