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Steam Air Venting Valve

NSN: 4520-00-631-1895 | Model: 417

An automatic valve designed to relieve, automatically, accumulated air in various types of steam heating systems.

NSN Properties and Flags
NATO Stock Number
4520-00-631-1895
DEMIL
NO
Maximum Operating Pressure
125.0 pounds per square inch
Overall Height
1.000 inches
Overall Width
0.750 inches
Valve Connection Size
0.125 inches
Valve Type
Steam radiator air vent
Valve Water Pressure Position
Closed
Valve Air Return Prevention
Required
Valve Shape
Any acceptable
Material
Rubber
Material
Rubber
Surface Treatment
Nickel
Surface Treatment
Nickel

Pricing and Availability

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NSN 4520-00-631-1895 Datasheet

Supply Class (FSC):
Space And Water Heating Equipment
Cross Reference:
  • 417
Cage Codes:
  • Taco Inc. (CAGE 59015)
Schedule B & Trade:
  • Schedule B: 8481100090 (NAICS 332911)

    Pressure-reducing valves, nesoi

  • SITC: 74710

    Pressure-reducing 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.

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 4520-00-631-1895 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Bureau Of Engraving and Printing
What is the NIIN of NSN 4520-00-631-1895?
006311895 or 00-631-1895
Does NSN 4520-00-631-1895 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4520-00-631-1895?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Mar 15, 1975