6650-00-912-4227 WINDOW,OPTICAL INSTRUMENT Index 6650-00-912-4229 MIRROR,OPTICAL INSTRUMENT

National Stock Number:
5340-00-912-4228

Federal Supply Class:
5340

National Item Identification Number:
009124228

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:
1054158319200US ARMY ARDEC RDECOM


Techincal Specification:
BODY OUTSIDE RADIUS0.062 INCHES NOMINAL
BODY THICKNESS0.032 INCHES NOMINAL
BOLT CIRCLE DIAMETER0.933 INCHES MINIMUM AND 0.943 INCHES MAXIMUM
BOLT CIRCLE HOLE QUANTITY3
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
FIRST RECESS INSIDE HEIGHT0.187 INCHES NOMINAL
FLANGE THICKNESS0.032 INCHES NOMINAL
FSC APPLICATION DATASIGHT,REFLEX
HOLE DIAMETER0.131 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
INSIDE ANGLE45.0 DEGREES NOMINAL
INSIDE CORNER RADIUS0.062 INCHES NOMINAL
INSIDE DIAMETER0.625 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
MATERIALALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 6061
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
OUTSIDE CORNER RADIUS0.062 INCHES NOMINAL
OUTSIDE DIAMETER1.141 INCHES MINIMUM AND 1.172 INCHES MAXIMUM
SECURING DEVICE TYPETHREADED FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE


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