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MIL-DTL-2036 Enclosures For Electric And Electronic Equipment, Naval ShipboardThis specification covers requirements for enclosures that house electric and electronic equipment for Naval shipboard use. Details concerning construction, ventilation, cooling, and mechanical protection are included in this specification. This specification also covers that class of explosion proof equipment which will contain any spark or ignition within the enclosure and not permit ignition in the surrounding external atmosphere as a result of normal operation or failure of electrical circuits within the enclosure. This specification is not intended to cover enclosures which form an integral part of equipment such as batteries.

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MIL-DTL-2036E

APPENDIX A

NOTES: (1) CHAMFERS ARE NOT PART OF THE JOINT WIDTH

(2) Co MAY BE SPECIFIED AS EITHER RADIAL OR DIAMETRICAL CLEARANCE.

DIMENSIONS FOR STEPPED JOINTS

SIZE OF ENCLOSURE

DIMENSIONS OF JOINT � INCHES (mm)

MINIMUM

MAXIMUM

INTERNAL FREE

TOTAL WIDTH

WIDTH OF

CLEARANCE

DIAMETRICAL

VOLUME � IN

OF STEPPED RADIAL CLAMPED

OF RADIAL

CLEARANCE OF

JOINT

SECTION OF AXIAL SECTION

WT+WO

JOINT

LESS THAN 125

.5 (12.7)

.046875 (1.190625) .0015 (.0381)

.003 (.0762)

MOTORS ONLY

.5 (12.7)

.09375 (2.38125)

.002 (.0508)

.004 (.1016)

LESS THAN 125

.625 (15.875)

.125 (3.175)

.003 (.0762)

.004 (.1016)

.625 (15.875)

.25 (6.35)

.003 (.0762)

.008 (.2032)

UNRESTRICTED

.75 (19.05)

.125 (3.175)

.003 (.0762)

.004 (.1016)

.75 (19.05)

.25 (6.35)

.003 (.0762)

.008 (.2032)

1 (2.54)

.125 (3.175)

.004 (.1016)

1 (2.54)

.25 (6.35)

.004 (.1016)

.008 (.2032)

SH 9249

FIGURE A-2. Stepped joints.