MIL-PRF-83323C
total.
3.6.2 Nozzle, Universal. The receptacle mating portion of the tester shall consist of a nozzle head assembly in
accordance with MS27604. The tester shall incorporate a mounting flange with bolt circle in accordance with
MS27604 which will accommodate the nozzle head assembly. The nozzle latching grooves poppet latching
grooves, poppet valve assembly, and the nozzle body shall be dimensionally and functionally comparable with the
flying boom nozzle head assembly. The nozzle poppet comparable with the flying boom nozzle head assembly.
The nozzle poppet (spring loaded with dashpot for dampening surges) shall provide a positive shutoff when the
tester is disconnected from the receptacle. Fuel leakage during any disconnect condition shall not exceed that
specified herein. The same poppet, when opened, shall provide a flow path for fuel transfer.
3.6.3 Nozzle Dust Cover. A dust cover compatible with the MS27604 nozzle diameter shall be provided for the
fuel outlet end of the tester. The dust cover shall be attached to the main body of the tester by a cable assembly.
The cable shall in no way interfere with the tester performance or its operation.
3.6.4 Pressure Fuel Servicing Adapter. A 2-1/2 inch diameter fuel servicing adapter conforming to MS24484-2
and selected from the qualified products list (QPL) of MIL-A-25896 shall be installed on the tester on the opposite
end from the MS27604 nozzle. The adapter shall be located in an elbow assembly of the tester which has 36f
swivel motion to allow 30increment indexing of the adapter. The adapter and envelope in and around the elbow
assembly shall be compatible with the D-1 (SAE-AS5877/MS29520) nozzle installed and during normal operation
of the D-1 nozzle.
3.6.5 Adapter Dust Cap. A dust cap conforming to MIL-C-8605 and MS29526-1 shall be provided for
installation on the adapter. See figure 1 for location relationship.
3.6.6 Elbow (30) and Index Handle Assembly. The elbow and index handle assembly, located between
the adapter and the main body (reducer), shall provide 360 of swivel motion and shall index at 30increments
starting with 0(12 o clock position). The elbow shall include a 3/8-inch drain plug located at the 6 o clock
position when the index angle is at the 12 o clock position. The index handle shall be capable of being manually
held in an unlocked position while the elbow is repositioned by the operator to the desired adapter location for
easy D-1 nozzle installation. The desired indexing and locking shall prevent any movement greater than 1/16 inch
of the elbow/adapter in relation to the body. See figure 1 for location and angular relationship relative to the tester
body. The load required to twist the elbow with respect to the body shall be not less than 5 inch-pounds (lbin)- nor
greater than 30 in-lb of torque
3.6.7 Body and Handle Assembly. The tester body shall provide the fuel flow path from the D-1 nozzle adapter
to the mounting flange for the MS27604 nozzle. The body shall also provide for the structural mounting of
handles for nozzle insertion, a mounting pad for the electrical box, and a structural kick pad to protect the
electrical box and its components. The handle, in conjunction with the restraining device (see 3.6.25), shall also
function as levers for inserting the tester into receptacles designed to make use of this function. This function shall
not affect the tester s operation in other types of receptacle installations. The handles shall be installed in a
horizontal plane passing through the nozzle centerline and normal to the edges of the kick pad. The edges of the
kick pad shall incorporate two receptacles (labeled GND) for inserting the D-1 nozzle the body and nozzle flange
centerline shall be 13 degrees, 30 minutes, plus or minus 30 minutes (see Figure 1). The body shall include a spool
valve which is lever activated and may be replaced as an entire assembled unit. The body shall also include a drain
fitting, with sealing cap, for a separate drain hose. The hose shall be of the MS8005-4C type, with a length of 10
feet. The hose end fittings shall include dust caps or plugs. A utility carrying handle shall be attached to the body
with pivotal mountings which permits folding for storage.
3.6.8 Electrical Requirements. The electrical components of the tester shall operate on 18 to 30V, nominally
28V DC power. All electrical components, materials, and wiring practices shall be fuel-resistant. Connectors
shall be in accordance with SAE-AS50151.
3.6.9 Bonding. Electrical components metallic structures, with the exception of the induction coil core, shall be
bonded and the electrical components shall be bonded to the tester.
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