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Lift-check Valve NSN 4820-01-527-2852

Item Description

A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.

NSN 4820-01-527-2852 NSN: 4820-01-527-2852

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Disk Loading Method
Weight
Bolt Hole Quantity
8 all ends
Maximum Operating Temp
150.0 degrees fahrenheit single response
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
175.0 pounds per square inch single response
Seat Angle
45.0 degrees 1st end
Outside Diameter
7.688 inches all ends
Thickness
0.938 inches all ends
Bolt Hole Diameter
0.562 inches all ends
Bolt Circle Diameter
6.562 inches all ends
Flange Face Design
Plain all ends
Outside Diameter Tube Accommodated
4.000 inches all ends
Part Name Assigned By Controlling Agency
Rubber flapper swing check valve with backflow device
Special Features
Modified from commerical valve by material of body, cover, cover bolts of bronze, guide stop screw of ss, handlebar of bronze (det 1, 2, 4, 18, 23); flanges iaw mil-f-20042 which differs from their commercial valves by dimensions of the o.D., bolt circle diameter and bolt hole; meets high shock requirements iaw mil-s-901d for lightweight, grade a, shock-proof equipment class i, mounting fixture 4c, location: hull, orientation unrestricted.
Material
Rubber butadiene-acrylonitrile class nbr flow control device and steel flow control device
Style Designator
Straight thru
Furnished Items And Quantity
1 handle
FSC
4820 Nonpowered Valves
NIIN
015272852
NSN
4820015272852

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
104P3.6
Cage Code:
79067
Status:
A
MSDS:
Part Number:
S-100 MODIFIED
Cage Code:
79067
Status:
A
MSDS:
Part Number:
9543607-CRF
Cage Code:
79067
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481301090
  • NAICS: 332911
  • SITC: 74730
  • Description: Check valves of copper having a pressure rating of 850 kpa or over
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-527-2852
What are the manufacturers of nsn 4820015272852?
Does this nsn 4820015272852 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015272852
A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. in the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. in the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. the valve disk may be spring loaded. see also valve, stop-check and valve, stop-lift-check.
Does nsn 4820015272852 contain any precious metals?
No precious metal content.
Does nsn 4820015272852 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015272852?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
27828
FIIG:
A530B0
App. Key:
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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