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|  MIL-M-45151C
4.6.2.1.1 Mounts. Mounts shall be tested by disassembling and then
reassembling parts using the parts and prearranged system specified below.
Interchange of parts shall be accomplished by dividing the parts of each
mount into 10 groups of nonmating parts as showm below and distributing
the groups into 10 different trays until each tray contains parts for a
complete mount. Groups of parts from the first mount shall be taken in
order and placed in trays 1 through 10; groups of parts from the second
mount shall be taken in order and placed in trays 2 through 10 to 1;
groups of parts from the third mount shall be taken in order and placed in
trays 3 through 10 to 2, etc. Commercial parts such as screws, spring pins,
etc., shall be placed in the same tray as their mating or associate part.
Any commercial part rendered unserviceable by disassembly shall be replaced
without penalty to the interchangeability test. The mounts shall be reassem-
bled using only those parts which are in the same tray.
Groups of Non-mating Parts
Group II
Group I
Handwheel, traversing (6158375)
Head, tripod, assembly
Screw, front leg clamping (6108395)
(5559419) (with bearing,
Screw, locking, traversing slide
sleeve-6108397)
(5140383)
Mechanism assembly, elevating
Screw, machine (5140237) (8 required)
(5574621). (with dial-5171492,
handwheel-6158375, lever-
(used with plates-6108396)
5194313, nut-5171491, pin-
5171495, screws-5139989 and
5140383, and springs-11010547
and 8412295 removed)
Group III
Group IV
Bar assembly, traversing (7149678)
Bolt, machine, hexagon head
Bolt, machine, hexagon head (5170485)
(5170484) (2 required) (used
with bar assembly-7149678)
(2 required) (used with spacers-
5140219)
Pintle, tripod mount (5559332)
Bolt, machine, hexagon head (5170486)
Screw, machine, button head
(2 required) (legs-6507136 and
(5139989) (used with lever
6507137 tO head 5559419)
assembly-5194313)
Group V
Group VI
Dial, scale (5171492)
Bolt, machine, hexagon head (5139973)
(used with pintle-5559332)
Leg, tripod mount, rear left
Nut, front leg clamping screw
(6507137) (with leg section-
(6193782)
11010426 and screw-5140213
removed)
Screw, machine, hexagon head (5141950)
Spring, helical, compression
(2 required) (used with lock assembly-
(11010547) (used with pin-
6108402)
5171495)
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