A-A-52502 Valve Assembly, Poppet, Hull Drain-Vehicular, 3 InchThis CID covers requirements for a 3 inch (in.) hull drain poppet valve assembly, which is used to drain water out of vehicles. The valve assembly consists of a valve, seat, spring, and knob.

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A-A-52502B

NOTES:

1. Dimensions are in inches. Unless otherwise specified, tolerances are: Machined surfaces 2 decimals ± 0.015, 3 decimals ± 0.005, angles ± 0 30’. Unmachined surfaces 2 decimals ± 0.031, angles ± 1°.

2. Unless otherwise specified, all machined surfaces shall be 125 microinches root mean square (rms) where surface roughness symbol is shown. All burrs and sharp edges shall be removed.

FIGURE 3. Valve.