MIL-DTL-23953 Valves, Combined Vent-Check, For Submarine Mbt Blow Lines \(Sizes 2.00 And 2.50 Inches\)This specification covers the construction, testing, and operation of combined vent-check valves with a nominal pressure seating of 4,500 pounds per square inch gage \(psig\), for use in submarine main ballast tank \(MBT\) high-pressure air blow lines \(sizes 2.00 and 2.50 inches\).

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MIL-DTL-23953D(SH)

6.8 Sub-contracted material and parts. The packaging requirements of referenced documents listed in section 2

do not apply when material and parts are acquired by the contractor for incorporation into the equipment and lose

their separate identity when the equipment is shipped.

6.9 Subject term (key word) listing.

Check poppet

EMBT blow

High-pressure air blow

Spring-loaded check valves

Water-slug

6.10 Changes from previous issue. Marginal notations are not used in this revision to identify changes with

respect to the previous issue due to the extent of the changes.

Custodian:

Preparing activity:

Navy � SH

Navy - SH

(Project 4820-2012-002)

Review activity:

DLA - CC

NOTE: The activities listed above were interested in this document as of the date of this document. Since

organizations and responsibilities can change, you should verify the currency of the information above using the

ASSIST Online database at https://assist.dla.mil.