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NPFC - MIL-PRF-25961

VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A

active, Most Current
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Organization: NPFC
Publication Date: 31 May 2011
Status: active
Page Count: 19
scope:

Description. This specification covers one type of liquid oxygen converter fill-buildup-vent valve for use in 70 and 300 pounds per square inch gage (psig) liquid oxygen (LOX) systems in aircraft. The valve is designated CRU-50/A.

intended Use:

The valve covered by this specification is used to control the flow of gaseous oxygen in the pressure buildup and vent circuits and the flow of LOX in the fill circuit of oxygen converter... View More

Document History

MIL-PRF-25961
September 28, 2020
Valve, Fill-Buildup-Vent, Liquid Oxygen Converter, CRU-50/A
A description is not available for this item.
MIL-PRF-25961
March 11, 2016
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-PRF-25961
May 31, 2011
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
Description. This specification covers one type of liquid oxygen converter fill-buildup-vent valve for use in 70 and 300 pounds per square inch gage (psig) liquid oxygen (LOX) systems in aircraft....
MIL-PRF-25961
April 23, 2008
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
Description. This specification covers one type of liquid oxygen converter fill-buildup-vent valve for use in 70 and 300 pounds per square inch gage (psig) liquid oxygen (LOX) systems in aircraft....
MIL-PRF-25961
October 17, 1998
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-PRF-25961
November 26, 1997
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
The valve covered by this specification is used to control the flow of gaseous oxygen in the pressure buildup and vent circuits and the flow of LOX in the fill circuit of oxygen converter systems of...
MIL-V-25961F
March 25, 1995
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
The valve covered by this specification is intended to be used to control the flow of gaseous oxygen in the pressure buildup and vent circuits and the flow of liquid oxygen in the fill circuit of...
MIL-V-25961
January 21, 1988
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961
February 18, 1982
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961
April 26, 1977
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961D
May 11, 1971
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961C (3)
April 9, 1969
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961C (2)
October 18, 1967
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961C (1)
January 17, 1966
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
MIL-V-25961C
June 21, 1965
VALVE, FILL-BUILDUP-VENT, LIQUID OXYGEN CONVERTER, CRU-50/A
A description is not available for this item.
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References

This document references:
MIL-PRF-38201 - VALVE, FILLER, LIQUID OXYGEN, FEMALE, CRU-59/E
Published by NPFC on December 18, 1998
This specification covers one type of CRU-59/E female liquid oxygen filler valve.
This document references:
ASQ Z1.4 - SAMPLING PROCEDURES AND TABLES FOR INSPECTION BY ATTRIBUTES
Published by ASQ on January 1, 2003
PURPOSE. This publication establishes sampling plans and procedures for inspection by attributes. When specified by the responsible authority, this publication shall be referenced in the...
This document references:
ASME B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay)
Published by ASME on January 1, 2019
This Standard is concerned with the geometric irregularities of surfaces. It defines surface texture and its constituents: roughness, waviness, and lay. It also defines parameters for specifying...
This document references:
ASTM B117 - Standard Practice for Operating Salt Spray (Fog) Apparatus
Published by ASTM on November 1, 2019
This practice covers the apparatus, procedure, and conditions required to create and maintain the salt spray (fog) test environment. Suitable apparatus which may be used is described in Appendix X1....
This document references:
ASME B1.20.1 - Pipe Threads, General Purpose (Inch)
Published by ASME on November 15, 2013
This Standard covers dimensions and gaging of pipe threads of the following series: NPT NPSC NPTR NPSM NPSL
This document references:
ASTM D2512 - Standard Test Method for Compatibility of Materials with Liquid Oxygen (Impact Sensitivity Threshold and Pass-Fail Techniques)
Published by ASTM on July 1, 2017
This method2,3,4 covers the determination of compatibility and relative sensitivity of materials with liquid oxygen under impact energy using the Army Ballistic Missile Agency (ABMA)-type impact...
This document references:
MIL-PRF-38201 - VALVE, FILLER, LIQUID OXYGEN, FEMALE, CRU-59/E
Published by NPFC on December 18, 1998
This specification covers one type of CRU-59/E female liquid oxygen filler valve.
This document is referenced by:
MIL-O-87226 CANC NOTICE 1 - OXYGEN SYSTEMS, AIRCRAFT, GENERAL SPECIFICATION FOR
Published by AIR FORCE on August 29, 1990
A description is not available for this item.
This document is referenced by:
MIL-DTL-25469 - VALVES, FILLER, LIQUID OXYGEN, AIRCRAFT TYPE
Published by NPFC on December 8, 2014
This specification covers one type of liquid oxygen filler valves for use in 70- and 300-pound per square inch gage (psig) liquid oxygen systems in aircraft.
This document is referenced by:
JSSG-2010-10 VALID NOTICE 1 - Crew Systems Oxygen Systems Handbook
Published by AIR FORCE on June 16, 2023
A description is not available for this item.
This document is referenced by:
MIL-DTL-19803 - CONVERTER, LIQUID OXYGEN, 10-LITER, GCU-24A/A
Published by NPFC on February 5, 2007
This specification covers one type of aircraft converter, GCU-24A/A, used for storing and pressuring 10 liters of liquid oxygen.
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