NSN 5340-01-057-0004

Part Details | ACCESS COVER

5340-01-057-0004 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 (as modified). Excludes all covers not specifically designed to provide access for the purposes listed above.

Alternate Parts: 139C7876, 139C7876, 5340-01-057-0004, 01-057-0004, 5340010570004, 010570004

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 04, 197801-057-000429785 ( COVER, ACCESS )
REFERENCE DRAWINGS & PICTURES

CIRCULAR RECESS

RECTANGLE, NO HOLES

Cross Reference | NSN 5340-01-057-0004
Part Number Cage Code Manufacturer
139C787605606GENERAL DYNAMICS-OTS, INC.DBA GD-OTS (WILLISTON)
139C787619200US ARMY ARDEC RDECOM
Technical Data | NSN 5340-01-057-0004
Characteristic Specifications
SECURING DEVICE TYPE THREADED FASTENER
MATERIAL ALUMINUM ALLOY 6061
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250 TO 11,T6 FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT LACQUER
PERIPHERAL SHAPE STYLE9 RECTANGLE, NO HOLES
WIDTH3.200 INCHES MINIMUM AND 3.240 INCHES MAXIMUM
LENGTH3.800 INCHES MINIMUM AND 3.840 INCHES MAXIMUM
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH2.000 INCHES NOMINAL
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG WIDTH0.990 INCHES NOMINAL
DISTANCE BETWEEN HOLES ALONG WIDTH2.810 INCHES NOMINAL
BOLT CIRCLE HOLE QUANTITY5
CORNER RADIUS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE6 CIRCULAR RECESS
BODY THICKNESS0.032 INCHES NOMINAL