Part Number 7791932

Observation Window

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
7791932
Demil:
No
Shelf Life:
UOM:
NIIN:
004979761

Part Information
Glass is mirror selec (for silvering) ; element per mil-r-6771, type i; clear aperature = entrance 66 mm x 63.5mm; surface quality = central zone 30-10, outer zone 40-20 per mil-o-13830; light deviation not to exceed 2 min. Ofarc; angle of incidence = 45 deg., white light reflectance 40% +/- 5%, absorption not to exceed 5%; edge chips allowable outside central zone, size and number per mil-o-13830; all edges chamfered to 0.01 + x 45 deg. +/- 5 deg. ; part to be handled on edges only; 2 corners on polished sides chamfered to0.030 in. X 45 deg.; opposite 2 corners are chamfered to 0.480 in. X 44 degrees

NSN
National Stock Number:
9340-00-497-9761 9340004979761
TXT
Description:
Observation Window
INC
INC
Item Name Code:
16880
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
3.550 inches
MRC:
An overall measurement taken at right angles to the length of an item,in distinction from thickness.ABMK
Overall Width:
2.566 inches
MRC:
An overall measurement of the smallest dimension of an item,in distinction from length or width.ADUM
Overall Thickness:
0.150 inches
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
1090-00-923-5971
MRC:
An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.AGYE
Surface Finish:
Ground
MRC:
The ability of the material to transmit light and allow visual perception.AJQE
Material Transparency:
Clear
MRC:
Indicates the type of edge on the item.AQQR
Edge Type:
Beveled
MRC:
A measurement of volume taken by multiplying the length by the width by the height of an item and rendered in cubic units.CBME
Cubic Measure:
1.367 cubic inches
MRC:
The ability of the item to intercept appreciable portions of radiant energy (especially solar energy) by virtue of its light transmission characteristics.CQLX
Heat Absorbing Characteristic:
High light transmission
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Glass plate
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Dd-g-451, type i, class 1, qualityq1 federal specification single material response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Chamfered corners

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