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: 627B2-1/4-28 | NSN: 4820-00-040-7472
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
4820-00-040-7472
Sold in multiples of
1 EA
DEMIL
NO
Pipe Size Accommodated
0.250 inches all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
400.0 degrees fahrenheit single response
End Application
Grumman aircraft model a10
Connection Style
G9 plain, optional en (pipe) all ends
Connection Style
Plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
18 all ends
Adjustable Pressure Range
+10.0 to 50.0 pounds per square inch
Maximum Operating Pressure
50.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Opening Pressure Setting
35.0 pounds per square inch
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Rubber fluorocarbon class fpm packing
Material
Steel comp 416 flow control device
Material Specification
Fedstd66, aisi416/sae51416 military specification single material response flow control device
Material Specification
Mil-r-83248/1 military specification single material response packing
Media For Which Designed
Fuel/oil, hydrocarbon 1st response
Media For Which Designed
Hydraulic fluid, silicate-ester base 2nd response
Surface Treatment
Anodize
Style Designator
C1 angle
Style Designator
Angle
Thread Series Designator
Npt all ends
627B2 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC18T6993 Valve, Safety Relief 2 EA 03/15/2018
SPE7MC18T020V Valve, Safety Relief 14 EA 06/11/2018

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
627B2-1/4-28 Cross Reference
  • 622B2-1/4-28
  • 622B2 1-4 28
  • 622B2-1-4-28