NSN 5310-01-270-8858

Part Details | RECESSED WASHER

5310-01-270-8858 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: 1400072118A3, 140-007-21-18A3, 5310-01-270-8858, 01-270-8858, 5310012708858, 012708858

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 15, 198801-270-885815933 ( WASHER, RECESSED )
REFERENCE DRAWINGS & PICTURES

SPRING TENSION

Cross Reference | NSN 5310-01-270-8858
Part Number Cage Code Manufacturer
140-007-21-18A397499BELL HELICOPTER TEXTRON INC.DBA BELL HELICOPTER
Technical Data | NSN 5310-01-270-8858
Characteristic Specifications
STYLE DESIGNATOR8 SPRING TENSION
HOLE DIAMETER0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM
OUTSIDE DIAMETER0.5525 INCHES MINIMUM AND 0.5725 INCHES MAXIMUM
MATERIAL THICKNESS0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM
TOP RECESS DIAMETER0.358 INCHES MINIMUM AND 0.378 INCHES MAXIMUM
BOTTOM RECESS DIAMETER0.358 INCHES MINIMUM AND 0.378 INCHES MAXIMUM
BOTTOM RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
TOP RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
SPECIAL FEATURES0.020 IN. MIN THK AT ID
MINIMUM TENSILE STRENGTH240000 POUNDS PER SQUARE INCH