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NationalStockNumber.INFO

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Observation Window

NSN: 9340-00-497-9761 | Model: 7791932

A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.

NSN Properties and Flags
NATO Stock Number
9340-00-497-9761
DEMIL
NO
Overall Length
3.550 inches
Overall Width
2.566 inches
Overall Thickness
0.150 inches
End Application
1090-00-923-5971
Surface Finish
Ground
Material Transparency
Clear
Edge Type
Beveled
Cubic Measure
1.367 cubic inches
Heat Absorbing Characteristic
High light transmission
Special Features
Glass is mirror selec (for silvering) ; element per mil-r-6771, type i; clear aperature = entrance 66 mm x 63.5mm; surface quality = central zone 30-10, outer zone 40-20 per mil-o-13830; light deviation not to exceed 2 min. Ofarc; angle of incidence = 45 deg., white light reflectance 40% +/- 5%, absorption not to exceed 5%; edge chips allowable outside central zone, size and number per mil-o-13830; all edges chamfered to 0.01 + x 45 deg. +/- 5 deg. ; part to be handled on edges only; 2 corners on polished sides chamfered to0.030 in. X 45 deg.; opposite 2 corners are chamfered to 0.480 in. X 44 degrees
Material
Glass plate
Material Specification
Dd-g-451, type i, class 1, qualityq1 federal specification single material response
Style Designator
Chamfered corners

Parts List for Helicopter Armament System  

Other components in the assembly of NSN 1090-00-923-5971

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NSN 9340-00-497-9761 Datasheet

Supply Class (FSC):
Glass Fabricated Materials
Cross Reference:
  • 7791932
Cage Codes:
  • Army, United States Department Of (CAGE 19204)
Schedule B & Trade:
  • Schedule B: 7016900000 (NAICS 327215)

    Pressed or molded glass articles, wired or not, for building or construction; leaded glass windows etc; formed multicellular or foam glass

  • SITC: 66496

    Articles of pressed or molded glass for building or construction use (paving blocks, bricks, etc.); leaded lights; multicellular glass blocks, etc.

  • End Use: 13200

    Glass-plate, sheet, etc.

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    145800 - Bomb/gun sights/parts in bxs

  • WCC:

    685 - Weapon parts, other than small arms

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LTL:

    B - 300.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    V
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    J2200x-
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $738.84 to $1,231.40..
Does NSN 9340-00-497-9761 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 9340-00-497-9761?
004979761 or 00-497-9761
Does NSN 9340-00-497-9761 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 9340-00-497-9761?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 03, 1969