4931-00-178-0984 REGULATOR,WATER PUMP NITROGEN Index 2805-00-178-0990 BRACKET,ENGINE OIL COOLER SCREEN

National Stock Number:
5340-00-178-0986

Federal Supply Class:
5340

National Item Identification Number:
001780986

Description:
COVER,ACCESS

Detail:
A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see DOOR, ACCESS. Excludes all covers not specifically designed to provide access for the purposes listed above.


Manufacturer Information:
1161778019207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
BODY THICKNESS0.620 INCHES NOMINAL
BOLT CIRCLE HOLE QUANTITY8
BOLT CIRCLE DIAMETER5.900 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLEFLAT, SQUARE OR RECTANGULAR RIB REINFORCED
FLANGE THICKNESS0.180 INCHES NOMINAL
HOLE DIAMETER0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
OUTSIDE DIAMETER6.370 INCHES MINIMUM AND 6.430 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-21180 MIL SPEC ALL MATERIAL RESPONSES
MATERIALALUMINUM ALLOY A356.0
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
SECURING DEVICE TYPESPECIAL


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