National Item Identification Number
00-450-8256
004508256
9340-00-450-8256
9340004508256
National Stock Number
Item Name
WINDOW,OBSERVATION
Federal Supply Class
9340
Description
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.
Commercial and Government Entity Code (Supplier Data)
11982
NORTHROP GRUMMAN SPACE & MISSION
SYSTEMS CORP
1 SPACE PARK BLVD
REDONDO BEACH
CA
90278
310-812-1089
12881
METEX CORPORATION
DBA TECHNICAL PRODUCTS DIV DIV
970 NEW DURHAM RD
EDISON
NJ
08817
732-287-0800
18565
PARKER HANNIFIN CORPORATION
DIV CHOMERICS DIVISION
77 DRAGON COURT
WOBURN
MA
01801
781-939-4341
Reference Numbers (Part Numbers)
C238928-1
90-292
90-292
Required Categories
STYLE DESIGNATOR
OVERALL DIAMETER
OVERALL THICKNESS
MATERIAL TRANSPARENCY
WI
Required Description
4 CIRCULAR
2.960 INCHES MINIMUM AND
2.990 INCHES MAXIMUM
0.110 INCHES MINIMUM