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Optical Element Retaining Ring

NSN: 6650-00-043-5850 | Model: 2478903
ITAR Registered seal

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

NSN Properties and Flags
NATO Stock Number
6650-00-043-5850
DEMIL
Yes - ITAR Controlled (Code B)
Overall Length
0.175 inches
Outside Diameter
0.374 inches
Aperture Diameter
0.198 inches
Internal Flange Thickness
0.020 inches
Press Fit Inside Diameter
+0.253 to 0.255 inches
Special Features
Tolerance for dim. 0.374 in. Od, to be plus 0.001 minus 0.000
Material
Aluminum alloy, qq-a-268, t4-canceled
Material
Aluminum alloy 2024
Surface Treatment
Anodized black

Pricing and Availability

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NSN 6650-00-043-5850 Datasheet

Supply Class (FSC):
Components And Accessories Test Equipment Optical Instruments
Cross Reference:
  • 2478903
  • 2478903
Cage Codes:
  • Naval Sea Systems Command (CAGE 53711)
  • Navair and Navsea Managed (CAGE 10001)
Schedule B & Trade:
  • Schedule B: 9018500000 (NAICS 339115)

    Other ophthalmic instruments and appliances and parts and accessories

  • SITC: 87225

    Ophthalmic instruments and appliances, n.E.S.

  • End Use: 21610

    Medicinal equipment

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:

    058110 - Optical goods or instruments noi

  • WCC:

    744 - Optical goods

  • 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.

  • LCL:

    D - 200.0

  • LTL:

    D - 200.0

  • ACC:

    M - Medical supplies, equipment, samples, records, etc.

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    9b-----
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $15.15 to $25.25..
Does NSN 6650-00-043-5850 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, and Italy
What is the NIIN of NSN 6650-00-043-5850?
000435850 or 00-043-5850
Does NSN 6650-00-043-5850 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 6650-00-043-5850?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1961