NSN 9340-00-990-8984
Part Details | OBSERVATION WINDOW
9340-00-990-8984 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.
Alternate Parts: 9340009908984, 8619898, 9340-00-990-8984, 00-990-8984, 9340009908984, 009908984
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 93 | JAN 01, 1962 | 00-990-8984 | 16880 ( WINDOW, OBSERVATION ) |
REFERENCE DRAWINGS & PICTURES
CHAMFERED CORNERS
Cross Reference | NSN 9340-00-990-8984
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 9340009908984 | SCY13 | E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES |
| 8619898 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 9340-00-990-8984
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | CHAMFERED CORNERS |
| OVERALL LENGTH | 3.360 INCHES MINIMUM AND 3.375 INCHES MAXIMUM |
| OVERALL WIDTH | 9.391 INCHES MINIMUM AND 9.406 INCHES MAXIMUM |
| OVAL END RADIUS | 1.687 INCHES NOMINAL |
| OVERALL THICKNESS | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| MATERIAL | GLASS |
| SURFACE FINISH | POLISHED |
| MATERIAL TRANSPARENCY | CLEAR |
| PLY QUANTITY | 1 |
| SPECIAL FEATURES | LIGHT DEVIATION NOT TO EXCEED 30 SECONDS WHEN SCANNING ENTIRE AREA WITH A TELESCOPE OF AT LEAST A 2.0 INCH APERTURE; SURFACE QUALITY 80-50 |