UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

NPFC - A-A-59503

NITROGEN, TECHNICAL

active, Most Current
Buy Now
Organization: NPFC
Publication Date: 24 October 2019
Status: active
Page Count: 6
scope:

This commercial item description (CID) covers two types of nitrogen: gaseous and liquid. Each type of nitrogen can be obtained in three different technical grades based primarily on nitrogen and oxygen content. Liquid nitrogen is used as a cooling agent for low temperature and cryogenic processes to shield temperature-sensitive materials and equipment from the effects of heat. Gaseous nitrogen is used to purge or pressurize systems or provide inert atmospheres. The list of intended uses includes, but is not limited to: pressurizing fuel tanks, hydraulic system accumulators, aircraft struts, rocket engine propellant systems, and carbon dioxide cylinders; purging aircraft oxygen converters; and purging and calibrating instruments. Since some systems are sensitive to oil contamination, gaseous nitrogen is divided into two classes: oil free and oil tolerant. Class 1, oil free nitrogen, is used for applications that cannot tolerate hydrocarbons, such as the purging of oxygen equipment. Class 2, oil tolerant nitrogen, is used for pressurizing oil-containing systems such as aircraft struts.

intended Use:

Oil tolerant nitrogen gas, Class 2, shall only be used with oil-containing systems or systems that can tolerate hydrocarbon contamination, like pressurizing aircraft struts. It is not to be used... View More

Document History

A-A-59503
October 24, 2019
NITROGEN, TECHNICAL
This commercial item description (CID) covers two types of nitrogen: gaseous and liquid. Each type of nitrogen can be obtained in three different technical grades based primarily on nitrogen and...
February 25, 2016
Nitrogen, Technical
A description is not available for this item.
March 3, 2011
NITROGEN, TECHNICAL
This commercial item description (CID) covers two types of nitrogen: gaseous and liquid. Each type of nitrogen can be obtained in three different technical grades based primarily on nitrogen purity...
October 20, 2008
NITROGEN, TECHNICAL
This commercial item description (CID) covers two types of nitrogen: liquid and gaseous. Each type of nitrogen can be obtained in two different technical grades based on nitrogen purity and oxygen...
November 9, 2006
NITROGEN, TECHNICAL
This commercial item description (CID) covers two types of nitrogen: liquid and gaseous. Each type of nitrogen can be obtained in two different technical grades based on nitrogen purity and limits on...
June 1, 2000
NITROGEN, TECHNICAL
This commercial item description covers two types of nitrogen, liquid and gaseous. Each of these two types of nitrogen can be obtained in two different technical grades based on nitrogen purity and...

References

Advertisement