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Optical Element Retaining Ring NSN 1240-01-071-4954

Item Description

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

NSN 1240-01-071-4954 NSN: 1240-01-071-4954

Features and Characteristics

Thread Class
2b
Thread Pitch Diameters
+1.4660/+1.4730 inches
Thread Direction
Right-hand
Thread Length
0.470 inches
Overall Length
0.500 inches
Outside Diameter
Between 1.845 inches and 1.905 inches
Thread Size
1 1/2-32
Aperture Diameter
Between 1.466 inches and 1.473 inches
Screw Thread Series Designator
Uns
Thread Location
Internal
Internal Flange Thickness
0.017 inches
Knurled Periphery
Not provided
Material
Aluminum alloy, qq-a-200/8, 6061, t6 or aluminum alloy, qq-a-225/3, alloy 2011, t3 or aluminum alloy, qq-a-225/6, alloy 2024, t4 or aluminum alloy, ww-t-700/6, alloy 6061, t6
Material
Aluminum alloy 6061 or aluminum alloy 2011 or aluminum alloy 2024 or aluminum alloy 6061
Material Specification
Qq-a-200/8, 6061, t6 federal specification 1st material response and qq-a-225/3, alloy 2011, t3 federal specification 2nd material response and qq-a-225/6, alloy 2024, t4 federal specification 3rd material response and ww-t-700/6, alloy 6061, t6 federal specification 4th material response
Surface Treatment
Anodize
Surface Treatment
Anodized, mil-a-8625, type 2, class 2
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
010714954
NSN
1240010714954

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
12266893
Cage Code:
19207
Status:
A
MSDS:
Part Number:
048093
Cage Code:
34228
Status:
A
MSDS:
Part Number:
957B048093
Cage Code:
34228
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9803200000
  • NAICS: 990000
  • SITC: 93100
  • Description: Military equipments not identified by kind
  • End Use (Code 50060):
    Military apparel and footwear

Q & A

Frequently asked questions for NSN 1240-01-071-4954
What are the manufacturers of nsn 1240010714954?
Does this nsn 1240010714954 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240010714954
A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. it may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. for externally threaded items, see retainer, optical element. excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.
Does nsn 1240010714954 contain any precious metals?
No precious metal content.
Does nsn 1240010714954 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240010714954?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22585
FIIG:
T271-J
App. Key:
JC
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
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