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Special Actuator Valve Diaphragm NSN 4820-00-493-1971

Item Description

An item constructed of one or more layers of thin flexible material, either laminated or separated, designed to form a tight seal between the chambers of a valve, and to transmit pressure inducted motion to a valve disk either directly or through a mechanical linkage. The surface of the item must be formed or molded to have a beaded or rolled edge, ribs or any other raised surfaces. The item may contain bolt holes and/or center holes. Excludes diaphra gm, valve, flat and gasket.

NSN 4820-00-493-1971 NSN: 4820-00-493-1971

Features and Characteristics

Hole Diameter
0.375 inches
Outside Diameter
7.500 inches
Bolt Circle Diameter
6.750 inches
Overall Height
0.625 inches
Material Thickness
0.066 inches
Center Hole Diameter
0.500 inches
Bolt Hole Quantity
12
FSC
4820 Nonpowered Valves
NIIN
004931971
NSN
4820004931971

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
B26247
Cage Code:
33547
Status:
A
MSDS:
Part Number:
531-503101
Cage Code:
33547
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481909090
  • NAICS: 332911
  • SITC: 74790
  • Description: Parts of taps, cocks, valves and similar appliances, nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-493-1971
What are the manufacturers of nsn 4820004931971?
Does this nsn 4820004931971 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004931971
An item constructed of one or more layers of thin flexible material, either laminated or separated, designed to form a tight seal between the chambers of a valve, and to transmit pressure inducted motion to a valve disk either directly or through a mechanical linkage. the surface of the item must be formed or molded to have a beaded or rolled edge, ribs or any other raised surfaces. the item may contain bolt holes and/or center holes. excludes diaphra gm, valve, flat and gasket.
Does nsn 4820004931971 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004931971 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004931971?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
40088
FIIG:
A540B0
App. Key:
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
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