MRC:
The provision/s/ for mounting the item.ABDR
Mounting Provision:
Barrel
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
1.621 inches
MRC:
A measurement of the longest straight line across a circular cross-sectional plane.ADAV
Overall Diameter:
2.470 inches
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
Type no. Ph-639/tf
MRC:
Indicates the performance capability of the item or component.AGLD
Performance Type:
Anastigmat
MRC:
The name and number of parts supplied with the item which may be required for application.AKYD
Accessory Components And Quantity:
1 cap, lens
MRC:
An indication of the mounting characteristics of the item.AWJH
Mounting Characteristic:
Mounted
MRC:
A measurement of the longest dimension from the center of a lens to the focal plane,in distinction from width.BKHF
Lens Focal Length:
5.500 inches
MRC:
An indication of the lens speed for which the item is designed.BKHG
Lens Speed For Which Designed:
F/4.5 relative aperture speed
MRC:
An indication of whether or not a focal length convertible feature is included.BKHZ
Focal Length Convertible Feature:
Not included
MRC:
The film/area size that the lens transposes relative to its field of view covered.BLDD
Field View Coverage:
4 by 5 in. Field of view covered
MRC:
An indication of whether or not a lens speed convertible feature is included.BLDK
Lens Speed Convertible Feature:
Not included
MRC:
An indication of whether or not a diaphragm is included.BLFJ
Diaphragm:
Included
MRC:
An indication of whether or not a lens board is included.BLFK
Lens Board:
Not included
MRC:
Indicates the type of base mounting provided.BLJZ
Base Mounting Type:
Screw
