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Optical Element Retainer NSN 1240-00-208-7561

Item Description

A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. Excludes ring, externally threaded.

NSN 1240-00-208-7561 NSN: 1240-00-208-7561

Features and Characteristics

Shoulder Diameter
Between 1.360 inches and 1.370 inches
Shoulder Length
Between 0.040 inches and 0.060 inches
Hole Diameter
Between 1.254 inches and 1.258 inches
Width
Between 0.060 inches and 0.080 inches
Overall Length
Between 0.210 inches and 0.230 inches
Hole Or Slot Quantity
4
Depth
Between 0.070 inches and 0.090 inches
Drive Type
Slotted
Drive Facility Angular Spacing In Deg
90.0
Guide Design
Thread chamfer
Guide Location
Both edges
Internal Annular Serration
Not provided
Setscrew Notch
Not provided
Flange Thread Size
1.500 in.-32uns-2a
Material
Steel, ams 5643
Material
Steel comp 630
Material Specification
Ams 5643 assn standard single material response
Surface Treatment
Passivate
Style Designator
Shouldered
Supplementary Features
Heat treatment, mil-h-6875, cond h925
Surface Treatment
Passivated, hp4-169, hughes aircraft co
Fsc Application Data
Receiver-transmitter, laser
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
002087561
NSN
1240002087561

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11738900
Cage Code:
19200
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 1240-00-208-7561
What are the manufacturers of nsn 1240002087561?
Does this nsn 1240002087561 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240002087561
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. it must have drilled holes or slots to facilitate assembly and disassembly. for items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. excludes ring, externally threaded.
Does nsn 1240002087561 contain any precious metals?
No precious metal content.
Does nsn 1240002087561 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240002087561?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22451
FIIG:
T271-K
App. Key:
KA
Cond. Code:
2
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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