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 where roughness symbol is shown. All burrs and sharp edges shall be removed.

FIGURE 2. Seat.