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Optical Element Spacer NSN 6650-01-076-1997

Item Description

A tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. The bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. The surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (aa). See also spacer, sleeve and cell, optical element.

NSN 6650-01-076-1997 NSN: 6650-01-076-1997

Features and Characteristics

Overall Length
0.559 inches
Body Diameter
3.090 inches
Body Outside Diameter
3.158 inches
End Application
M901
Flange Width
0.230 inches
Taper Bore Major Diameter
3.066 inches
Taper Bore Minor Diameter
2.745 inches
Taper Angle
16.0 degrees
Special Features
Spacer-no. 1, eyepiece; black; 4 slots 0.060 in. Wide by 0.050 in. Deep; 0.081 in. Through hole with center 0.290 in. From tapered bore edge; establish length by measuring separation between reference sphere 1.990 radius and surface b (reference radius located 0.010 in. From b edge)
Material
Aluminum alloy 6061
Material Specification
Qq-a-225/8, t651 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2, class 2 military specification single treatment response
FSC
6650 Components And Accessories Test Equipment Optical Instruments
NIIN
010761997
NSN
6650010761997

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
12266753
Cage Code:
19207
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9018500000
  • NAICS: 339115
  • SITC: 87225
  • Description: Other ophthalmic instruments and appliances and parts and accessories
  • End Use (Code 21610):
    Medicinal equipment

Q & A

Frequently asked questions for NSN 6650-01-076-1997
What are the manufacturers of nsn 6650010761997?
Does this nsn 6650010761997 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6650010761997
A tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. the bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. the surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (aa). see also spacer, sleeve and cell, optical element.
Does nsn 6650010761997 contain any precious metals?
No precious metal content.
Does nsn 6650010761997 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6650010761997?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22261
FIIG:
A07000
App. Key:
AB
Cond. Code:
1
Status:
A

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