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Ophthalmic Lens Blocking Unit

NSN: 6540-00-494-1852 | Model: 99

An item consisting of a blocker, designed to center and affix an ophthalmic lens blank to a prepitched lens block, and a preheating oven.

NSN Properties and Flags
NATO Stock Number
6540-00-494-1852
DEMIL
NO
Current Type
Ac
Frequency Rating
60.0 hertz
Accessory Components
Integral melting pot
Accessory Components And Quantity
Adapter, water ring, for colored lenses 1; alloy blocking, for glass lenses 100 lb; block, 6 diopter base curve 75; block, 8 diopter base curve 25; block, 12 diopter base curve 4; center hard steel 100; deblocker, regular 2; gage, prism 2 sets; pre-coat spray 24 cans; ring, lens position 22; ring, nesting, neoprene 6
Voltage Rating
220.0 pounds per hour wet
Design Type
Low melting point alloy blocking
Thermostatic Control
Included
Blocking Table Quantity
1
Blocking Table Type
Nontilting
Blocking Table Protractor
Not included
Lens Chuck Type
Mechanical
Preheating Unit Type
Reclaim tank
Audible Timing Device
Not included
Preheating Unit Thermostatic Control
Not included
Supplementary Features
Requisition should state frequency of electrical current, number of wires in distribution system, whether single phase or three phase, and voltage

Pricing and Availability

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NSN 6540-00-494-1852 Datasheet

Supply Class (FSC):
Supplies Equipment Ophthalmic Instruments
Cross Reference:
  • 99
Cage Codes:
  • Gerber Coburn Optical Industries Inc (CAGE 31285)
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.

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.

  • 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
    S9m
  • AAC
    Y
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    C2103n-
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $22,385.69 to $37,309.48..
Does NSN 6540-00-494-1852 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Spain
What is the NIIN of NSN 6540-00-494-1852?
004941852 or 00-494-1852
Does NSN 6540-00-494-1852 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 6540-00-494-1852?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 02, 1970