INCH-POUND
MIL-DTL-22606D(SH)
10 January 2011
SUPERSEDING
MIL-F-22606C(SH)
11 August 1992
DETAIL SPECIFICATION
FLASK AND END PLUGS, COMPRESSED GAS - AIR, OXYGEN, AND NITROGEN
This specification is approved for use by Naval Sea Systems Command, and is available for use by all
Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers seamless steel flasks with integral forged heads and various composition
end plugs for storing compressed gases (air, oxygen, nitrogen, helium, or helium-oxygen mixtures).
1.2 Classification. Flasks and end plugs are of the following types, classes, and services as specified (see 6.2).
1.2.1 Types. The types of seamless steel flasks are as follows:
a.
GF General service flask, straight design (see figure 1)
CD General service flask, curved design (see figure 1)
b.
SF Air moisture separator flask (see figure 2)
c.
1.2.1.1 Subtypes. Flasks may have more than one subtype as follows:
a.
A Special attachments as specified (see 6.2)
b.
S Skirted (see figure 1)
c.
W Wide outside diameter (20 inches)
1.2.2 Classes. The classes of seamless steel flasks are as follows:
a.
Class 3000 3000 pounds per square inch (psi) maximum allowable working pressure (MAWP)
b.
Class 5000 5000 psi MAWP
c.
Class 5500 5500 psi MAWP
1.2.3 Services. The services for seamless steel flasks are as follows:
a.
Service A Compressed air
b.
Service B Oxygen
c.
Service C Oil free nitrogen, helium, or helium-oxygen mixtures
1.2.4 Plug types. Each plug type is available in a range of sizes as indicated in their respective figures as
follows:
a.
S Straight plug (see figure 3)
R Right angle (90 degree) plug (see figure 4)
b.
Y "Y" plug (see figure 5)
c.
Comments, suggestions, or questions on this document should be addressed to Commander, Naval Sea Systems
Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or
emailed to CommandStandards@navy.mil, with the subject line "Document Comment". Since contact information
can change, you may want to verify the currency of this address information using the ASSIST Online database at
https://assist.daps.dla.mil.
AMSC N/A
FSC 8120
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