3020-00-294-7419 GEAR,HELICAL Index 3020-00-294-7426 CHAIN,ROLLER

National Stock Number:
5340-00-294-7423

Federal Supply Class:
5340

National Item Identification Number:
002947423

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:
761353119207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
BODY THICKNESS0.897 INCHES NOMINAL
BOLT CIRCLE HOLE QUANTITY6
BOLT CIRCLE DIAMETER3.367 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
FIRST RECESS INSIDE HEIGHT1.500 INCHES NOMINAL
FLANGE THICKNESS0.897 INCHES NOMINAL
HOLE DIAMETER0.265 INCHES NOMINAL
INSIDE CORNER RADIUS0.250 INCHES NOMINAL
INSIDE DIAMETER2.937 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-636 FED SPEC ALL MATERIAL RESPONSES
MATERIALSTEEL
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
OUTSIDE DIAMETER4.250 INCHES NOMINAL
SECURING DEVICE TYPETHREADED FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325 TYPE 3 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTZINC


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