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NationalStockNumber.INFO

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Check Valve

NSN: 4820-00-013-1292 | Model: 20B21

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

NSN Properties and Flags
NATO Stock Number
4820-00-013-1292
DEMIL
NO
Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
16 all ends
Maximum Operating Pressure
500.0 pounds per square inch single response
Thread Size
0.750 inches all ends
Seat Angle
37.0 degrees all ends
Outside Diameter Tube Accommodated
0.500 inches all ends
Special Features
Bulkhead thd first end
Material
Stainless steel flow control device
Surface Treatment
Anodize
Style Designator
Straight thru
Thread Series Designator
Unf all ends

Pricing and Availability

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NSN 4820-00-013-1292 Datasheet

Supply Class (FSC):
Nonpowered Valves
Cross Reference:
  • 20B21
  • A02PS303-1
  • A02PS303-1
Cage Codes:
  • Valve, Inc. Auto (CAGE 91511)
  • The Boeing Company (CAGE 77272)
  • The Boeing Company (CAGE 81205)
Schedule B & Trade:
  • Schedule B: 8481309000 (NAICS 332911)

    Check valves of materials other than copper, iron or steel

  • SITC: 74730

    Check valves

  • End Use: 21180

    Industrial machines, other

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

U - Precious metal content is unknown

CRITL

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

NSN Management Codes:
  • SOS
    S9c
  • AAC
    Y
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    9c-----
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $26.41 to $44.01..
Does NSN 4820-00-013-1292 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Canada
What is the NIIN of NSN 4820-00-013-1292?
000131292 or 00-013-1292
Does NSN 4820-00-013-1292 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-00-013-1292?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1961