NSN 5310-01-272-9988

Part Details | RECESSED WASHER

5310-01-272-9988 A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes WASHER, CONCAVE, RETAINER, PACKING, and thrust type washers. See also SPACER, SLEEVE; and SPACER, STEPPED.

Alternate Parts: 2640390X2 PIECE 7, 2640-390X2 PIECE 7, 8452050957 PIECE 7, 845-2050957 PIECE 7, SS8452050957 PIECE 7, SS845-2050957 PIECE 7, 5310-01-272-9988, 01-272-9988, 5310012729988, 012729988

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 18, 198801-272-998815933 ( WASHER, RECESSED )
REFERENCE DRAWINGS & PICTURES

SPRING TENSION

Cross Reference | NSN 5310-01-272-9988
Part Number Cage Code Manufacturer
2640-390X2 PIECE 796169ELECTRIC BOAT CORPORATION
845-2050957 PIECE 780064NAVAL SHIP SYSTEMS COMMAND
SS845-2050957 PIECE 780064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 5310-01-272-9988
Characteristic Specifications
STYLE DESIGNATOR8 SPRING TENSION
HOLE DIAMETER2.625 INCHES NOMINAL
OUTSIDE DIAMETER4.001 INCHES MINIMUM AND 4.002 INCHES MAXIMUM
MATERIAL THICKNESS0.719 INCHES NOMINAL
TOP RECESS DIAMETER2.823 INCHES NOMINAL
BOTTOM RECESS DIAMETER2.823 INCHES NOMINAL
BOTTOM RECESS ANGLE90.0 DEGREES NOMINAL
TOP RECESS ANGLE90.0 DEGREES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT