INCH-POUND
MS21430B
9 February 2009
SUPERSEDING MS21430A
6 December 1977
DETAIL SPECIFICATION SHEET
VALVE, CHECK, FUEL AND AIR, POPPET TYPE, ZERO, LEAK
Inactive for new design after
15 October 1998.
This specification is approved for use by all Departments and
Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of this specification sheet and
MIL-V-7899, "Valve, Check, Aircraft Fuel System".
FIGURE 1. Check valve.
AMSC N/A FSC 4820
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