Part Number C685-17

Optical Element Retaining Ring

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
c685-17
Demil:
Yes - DEMIL/MLI
Shelf Life:
UOM:
NIIN:
004992802

Part Information
32 pitch anti-reflection thread inside surface of both ends, six ea holes 0.1540 in. Dia. Drilled through external flange, external flange has two ea rectangle milled areas 1.812 in. From center of ring diameter to outer edge offlange and 1.000 in. Wide, 1 ea hole 0.110 in. Dia. Drille through external flange, 2 ea holes 0.188 in. Diameter drilled through body of ring

NSN
National Stock Number:
6650-00-499-2802 6650004992802
TXT
Description:
Optical Element Retaining Ring
INC
INC
Item Name Code:
22585
INC
COM
Compliance:
* ITAR Controlled
MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3b
MRC:
The length of a straight line which passes through the center of the groove,and terminates at the circumference.AAVZ
Groove Diameter:
3.270 inches
MRC:
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.ABET
Thread Length:
0.472 inches
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
2.343 inches
MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.ABKV
Outside Diameter:
4.688 inches
MRC:
Designates the thread diameter and number of threads per specific measurement scale.ABUJ
Thread Size:
3.250 in.-32
MRC:
The length of a straight line which passes through the center of an aperture,and terminates at the circumference.ABVL
Aperture Diameter:
2.954 inches
MRC:
A measurement taken at right angles to the length of the inner groove,in distinction from thickness.ADWA
Inner Groove Width:
0.060 inches
MRC:
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.AJYP
Screw Thread Series Designator:
Uns
MRC:
Indicates the location of the thread on the item.APJC
Thread Location:
Internal
MRC:
A measurement of the smallest dimension of an internal flange,in distinction from length or width.BMTL
Internal Flange Thickness:
0.219 inches
MRC:
Indicates the location of the groove on the item.BMTY
Groove Location:
Inside face of flange
MRC:
An indication of whether or not a knurled periphery is provided.BPDQ
Knurled Periphery:
Not provided
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Aluminum alloy, qq-a-225/8
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum alloy 6061
MRC:
Consists of plating,dip,and/or coating that cannot be wiped off.plating and/or coating is any chemical and/or metallic additive,electrochemical,or mild mechanical process which protects a surface.SURF
Surface Treatment:
Anodized black

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