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Optical Element Retainer NSN 1240-01-073-5910

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 1240-01-073-5910 NSN: 1240-01-073-5910

Features and Characteristics

Hole Diameter
Between 0.270 inches and 0.275 inches
Width
Between 0.030 inches and 0.040 inches
Overall Length
Between 0.120 inches and 0.130 inches
Hole Or Slot Quantity
4
Recess Diameter
Between 0.270 inches and 0.275 inches
Recess Depth
Between 0.025 inches and 0.035 inches
Thread Size
0.375 in.-32
Depth
Between 0.025 inches and 0.035 inches
Drive Type
Slotted
Drive Facility Angular Spacing In Deg
90.0
Guide Design
Thread relief
Guide Location
Edge opposite drive edge
Internal Annular Serration
Not provided
Setscrew Notch
Not provided
Hole Chamfer Angle In Deg
0.0
Hole Chamfer Diameter
Between 0.270 inches and 0.275 inches
Material
Steel, corrosion resisting
Material
Stainless steel
Style Designator
Recessed
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
010735910
NSN
1240010735910

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11507566
Cage Code:
18876
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 1240-01-073-5910
What are the manufacturers of nsn 1240010735910?
Does this nsn 1240010735910 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240010735910
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 1240010735910 contain any precious metals?
No precious metal content.
Does nsn 1240010735910 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240010735910?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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