Fram (body) consists of 3/4-14 aluminum straight pipe; window includes: frame, 3 neoprene spacer washers, 2 aluminum nuts, 1 rubber o-ring and a clear plastic viewer window; dimensions including frame: 1.380 inch in diameter by 0.630 inch thick; cage calls this: sight glass
No other part numbers with same form, fit, and function found.
A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
Classification: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 5910-01-152-5775
NSN 5930-01-435-9768
NSN 4140-01-576-9310
NSN 6685-01-505-4758
NSN 5960-01-507-9112
NSN 5965-01-127-0389
NSN 5910-01-350-3252
NSN 6145-00-936-0083
NSN 7035-01-617-8213
NSN 5990-01-116-2181
NSN 6610-01-426-5090
NSN 5960-00-462-7145