Secure Ordering: +1 (757) 528-8028
Parts Catalog » Hardware » Contact Us » Quote »
NationalStockNumber.info
NationalStockNumber.INFO

Worldwide distributor of NSN parts and consumables located in the USA.

Safety Relief Valve

Model / MPN: 20391 ASSY 20391-01-3-3300 | NSN: 4820-01-442-2081
ITAR Registered seal

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Product Details
NATO Stock Number
4820-01-442-2081
Sold in multiples of
1 EA
DEMIL
NO
Pipe Size Accommodated
0.250 inches all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
150.0 degrees fahrenheit single response
End Application
Wasp class lhd
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Maximum Operating Pressure
3450.0 pounds per square inch single response
Opening Pressure Setting
3300.0 pounds per square inch
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy body
Material
Nickel alloy flow control device
Material Specification
Astm a494 assn standard single material response body
Material Specification
Astm b164 assn standard single material response flow control device
Material Specification
Astm b164 assn standard single material response seat
Material Specification
Astm b164 assn standard single material response stem
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC15TK558 Valve, Safety Relief 2 EA 10/05/2015
SPE7MC17T9340 Valve, Safety Relief 2 EA 02/13/2017
SPE7MC17TQ930 Valve, Safety Relief 2 EA 07/28/2017
SPE7MC17TP554 Valve, Safety Relief 2 EA 07/10/2017
SPE7MC18T1887 Valve, Safety Relief 1 EA 11/13/2017
SPE7MC18T2267 Valve, Safety Relief 1 EA 11/20/2017
SPE7MC18T5934 Valve, Safety Relief 2 EA 02/16/2018
SPE7MC18T007Q Valve, Safety Relief 3 EA 05/31/2018
SPE7MC19T101C Valve, Safety Relief 2 EA 07/22/2019
SPE7MC20T5103 Valve, Safety Relief 5 EA 02/21/2020

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Qty:
Email Address:
Phone Number:
Your name:
Company:
Privacy    Terms

Certified Quality Assurance  Quality check icon

  •   ISO 9001:2015 + AS9120B
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   On Time Delivery
  •   HAZMAT Certified
  •   Worldwide Shipping
20391 ASSY 20391-01-3-3300 Cross Reference
  • 20391-01-E-3300
  • 20391
  • 20391-01-E-3300