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

Safety Relief Valve

Model / MPN: 16811 | NSN: 4820-00-407-2581
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
4820-00-407-2581
Sold in multiples of
1 EA
DEMIL
NO
Thread Direction
Right-hand 1st end
Flow Control Device
Stem
Maximum Operating Temp
160.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) 1st end
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Manual
Connection Type
Threaded external pipe 1st end
Maximum Operating Pressure
225.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Material
Copper alloy
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC18T0341 Valve, Safety Relief 123 EA 10/16/2017
SPE7MC18T7782 Valve, Safety Relief 50 EA 04/05/2018
SPE7MC18T111Q Valve, Safety Relief 96 EA 08/06/2018
SPE7MC18U0171 Valve, Safety Relief 96 EA 08/17/2018
SPE7MC19T6036 Valve, Safety Relief 326 EA 02/25/2019
SPE7MC19T048Y Valve, Safety Relief 123 EA 07/01/2019
SPE7MC20T3648 Valve, Safety Relief 166 EA 01/21/2020
SPE7MC20T4126 Valve, Safety Relief 166 EA 02/03/2020
SPE7MC20T5640 Valve, Safety Relief 594 EA 03/02/2020

Pricing and Availability

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16811 Cross Reference
  • 16811
  • 2D200B
  • 13216E2798
  • 2D200B
  • 2D200B
  • 119039