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.

Stop-check Valve

Model / MPN: 803-1385541-033AF | NSN: 4820-01-535-4071
ITAR Registered seal

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Product Details
NATO Stock Number
4820-01-535-4071
Sold in multiples of
1 EA
DEMIL
NO
Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
8 all ends
End Application
Lhd8
Valve Operation Method
Manual or automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal or vertical
Valve Size
3.000 inches
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
6.625 inches all ends
Face To Face Distance
10.000 inches
Thickness
0.500 inches all ends
Bolt Hole Diameter
0.562 inches all ends
Bolt Circle Diameter
5.500 inches all ends
Flange Face Design
Plain all ends
Raised Face Diameter
3.000 inches all ends
Outside Diameter Tube Accommodated
3.000 inches all ends
Material
Copper alloy 922 body
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Graphite packing
Material
Nickel alloy flow control device
Material Specification
Astm a494 -30c assn standard single material response flow control device or qq-n-281 cl a federal specification single material response flow control device
Material Specification
Astm a494 -30h assn standard single material response seat
Material Specification
Astm b164 assn standard single material response stem or qq-n-281 federal specification single material response stem
Material Specification
Astm b61 assn standard single material response body
Material Specification
Mil-24503 ty ii cl 2 gr n military specification 1st material response packing and mil-p-24583 cl 2 gr n federal specification 2nd material response packing
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through flanged ends
Test Data Document
81349-mil-s-901d interim change i for lightweight equi+0.81349-mil-s-901d interim change i for lightweight equi+0gr a cl i ty a specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.). And mil-std-167 ty i standard (includes industry or association standards, individual manufactureer standards, etc.).
Furnished Items And Quantity
1 handwheel

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
803-1385541-033AF Cross Reference