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4820-00-431-8321

Stop-Check Valve

4820004318321 004318321 C522-1-BREVA/C522-1-B2/882039336 81561-01 3/4IN B522-1-B1 B522-1-B1CID882039176 S807-14 C522-0-B12 C522-1-B2 C522-1-B PART C522-1-B2 80000-01 PART 81561-01 3/4IN

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. View more Stop-Check Valve

4820-00-431-8321 VALVE,STOP-CHECK 4820004318321 004318321

Managed by United States
NSN Created on 5 May 1971
Data Last Changed
January 2023
NATO Update Count
9
NATO Data Quality
STYL Style E1 for 4820-00-431-8321 1/1
NSN 4820-00-431-8321 (Identification) 1/1

4820-00-431-8321 Stock and Availability Marketplace 4820-00-431-8321

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4820-00-431-8321 Related Documents Related Documents 4820-00-431-8321 5+ Documents (More...)

C522-1-BREVA/C522-1-B2/882039336 C522-0-B12 81561-01 3/4IN B522-1-B1 B522-1-B1CID882039176 S807-14 C522
-1-B2 C522-1-B PART C522-1-B2 80000-01 PART 81561-01 3/4IN A valve with a bolt or stem that may be mechanically
Date:1 Nov 1998 Approved Sources 4820-00-431-8321 Part NumberManufacturerStatusC522-1-BREVA/C522-1-B2
B522-1-B1 B522-1-B1CID882039176 S807-14C522-1-B2 C522-1-B PART Stop-Check Valve Receiver-Transmitter
Group 5895151451017 /882039336 C522-0-B12 81561-01 3/4IN B522-1-B1 B522-1- B1CID882039176 S807-14C522
-1 -B2 C522-1-B PART C522-1-B2 80000-01 PART 81561-01 3/4IN A valve with a https//www.nsnlookup.com /
Stop-Check Valve 4820004318321 004318321 /882039336 C522-0-B12 81561-01 3/4IN B522-1-B1 B522-1-
B1CID882039176 S807-14C522-1-B2 C522-1-B PART C522-1-B2 80000-01 PART 81561-01 3/4IN A valve with a bolt
Group 5895151451017 /882039336 C522-0-B12 81561-01 3/4IN B522-1-B1 B522-1 https//www.nsnlookup.com /
Documents 4820-01-006-8585 2+ Documents ( More https//www.nsnlookup.com /fsg-48/fsc-4820/us 4820-00-431-8321
Stop-Check Valve 4820004318321 004318321 BREVA/C522-1-B2/882039336 C522-0-B1281561-01 3/4IN https
Navy (DN)NZDiscontinued-Use 4820-00-431-8321Defense Logistics Agency (DS)IZDiscontinued-Use 4820-00-431-8321
B4L1 MIL-V -22094L1 C522-1-B PART C522-1-B4L1 C522-1-B PART C522-1- B4 W0075311500 DWG VA -1-BREVA/C522-1-B2
www.nsnlookup.com /fsg-48/fsc-4820/us 4820-00-121-6870 Stop-Check Valve 4820001216870 001216870 -0-B12 81561-01 3/4IN
B522-1-B1 B522-1-B1CID882039176 S807-14C522-1-B2 C522-1-B PART C522-1-B2 80000- -1-B PART Stop-Check

4820-00-431-8321 Demil Restrictions 4820-00-431-8321

DEMIL: A | DEMILI: | CRITICALITY: S | HMIC: N | PMIC: A | EDC: | ADPEC: 0

4820-00-431-8321 is a Stop-Check Valve that is specifically designed to be or selected as being nuclear hard. In addition it has other critical features such as tolerance, fit restrictions or application.This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.

4820-00-431-8321 HTS and ScheduleB Import and Export 4820-00-431-8321

4820-00-431-8321 End Users End Users 4820-00-431-8321

Brazil (YA01)
Effective Date:
1 Dec 1999
Turkey (ZW01)
Effective Date:
1 Nov 1998

4820-00-431-8321 Manufacturers Approved Sources 4820-00-431-8321

4820-00-431-8321 Technical Data Datasheet 4820-00-431-8321

Characteristic
Specifications
FIIG
A530B0
Material [MATT]
Steel Body
Material [MATT]
Steel Flow Control Device
Material [MATT]
Steel Seat
Material [MATT]
Steel Corrosion Resisting Stem
Material Document And Classification [MDCL]
Astm A105, Grade 2 Assn Std Single Material Response Body
Material Document And Classification [MDCL]
Mil-R-17131,Mil-Rcocr-A Mil Spec Single Material Response Flow Control Device
Material Document And Classification [MDCL]
Mil-R-17131,Mil-Rcocr-A Mil Spec Single Material Response Seat
Style Designator [STYL]
Straight Thru
Flow Control Device [ADQU]
Disk
Media For Which Designed [MEDA]
Steam Single Response
Maximum Operating Pressure [CQGM]
1500.0 Pounds Per Square Inch Single Response
Maximum Operating Temp [AEHZ]
775.0 Deg Fahrenheit Single Response
Valve Operation Method [AQLR]
Manual
Connection Type [AWLS]
Unthreaded Internal Pipe All Ends
Connection Style [AHNC]
Socket (Pipe) All Ends
Nominal Pipe Size Accommodated [AAAR]
0.750 Inches All Ends
Mounting Position [BBJX]
Horizontal
Bonnet Type [ADSR]
Outside Screw-Yoke
Bonnet Attachment Method [ADST]
Bolted
Features Provided [CBBL]
Bonnet Packing
Special Features [FEAT]
Valve Size 0.750 In.

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4820-00-431-8321 Freight Data Freight Information 4820-00-431-8321

4820-00-431-8321 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 051080. A Sub NMFC of Z. It has a NMFC Description of FAUCETS,BIBCOCKS,GATES VALVES. 4820-00-431-8321 is rated as a variable freight class when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 29300 which rates the freight between FCL and LCL. 4820-00-431-8321 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 576 for ocean manifesting and military sealift. 4820-00-431-8321 is not classified as a special type of cargo when transported by water. 4820-00-431-8321 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.

4820-00-431-8321 Packaging Data Packaging Data 4820-00-431-8321

Responsible Activity
Packaging Data Source
Primary Inventory Control Activity (PICA)
Packaging Data does not meet current MIL-STD-2073-1E

Item Pack Level (Unpackaged)

Item Size
Item Weight
Characteristics
Weight/Dimensions Category
Fragility
Item Preservation
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Over 10lb
Less than 85G
Special Requirement

Unit Pack Level (Packaged)

Quantity per Pack
Unit Size
Unit Weight
Unit Cube
Preservation Method
Cleaning/Drying
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Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking
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Special Requirements. See Specific Instructions or Drawings Provided
Special Requirements. See Specific Instructions or Drawings Provided
ASTM-D5118, Type CF, Class Weather-Resistant, Corrugated Fiberboard Box
No special marking

Intermediate Pack Level

Quantity of Unit Packs
Container
--
No Requirement