Model: 8567556

Optical Instrument Window

Special Features:

Corners rounded 0.237in. Max 0.197in. Min. Radius; resolving power to be 30 sec of arc or better as used whenscanning clear aperture with a telescope of at least a 0.5in. Aperture; light deviation not to exceed plus or minus 2 min of arc; spherical power not toexceed 7 millidiopters; astigmatism not to exceed 3 millidiopters; surface quali type 80-50

Properties:

Width
Between 24.9 millimeters and 25.4 millimeters
Thickness
Between 4.800 millimeters and 5.200 millimeters
Length
Between 62.740 millimeters and 63.240 millimeters
Surface Finish
Polished
Bevel Depth
0.510 millimeters
Refraction Index
Between 1.5160 and 1.5180
Polished Surface
Both
Dispersion
Between 64.000 angstroms and 65.000 angstroms
Reflection Reducing Surface
Both
Polished Periphery
Not provided
Bevel Angle In Deg
45.000
Material
Glass, optical, jan-g-174, type 517-645, grade c
Material
Glass, optical, jan-g-174, type 517-645, grade c
Fsc Application Data
Sight periscope t42
NSN
1240-00-599-9218
Part Number
8567556
Description
Window,optical Instrument
CAGE
19200

A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.

Part 8567556 NSN 1240-00-599-9218

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
10908
FIIG:
T271-F
Concept No.:
App. Key:
FA
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
058110
UFC:
33110
LTL:
200.0
LCL:
200.0
WCC:
744
TCC:
Z
SHC:
9
ACC:
Medical Supplies

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:



Privacy Policy    Terms & Conditions

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this optical instrument window (NSN 1240-00-599-9218) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
Schedule B and Export
  • Schedule B: 9803200000
  • SITC: 93100
  • End Use: Military apparel and footwear
  • NAICS: 990000
  • USDA: 1

Freight Class: Military equipments not identified by kind

Highest Rated Parts
Recently Purchased Parts
Hot Parts