NSN 5310-01-331-1281

Part Details | RECESSED WASHER

5310-01-331-1281 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: AS32990C3, VN948YNP3C, MM891C3, 03A280C3, NS202859C3, NS2028593, NS202859-3, 5310-01-331-1281, 01-331-1281, 5310013311281, 013311281

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 14, 199001-331-128115933 ( WASHER, RECESSED )
REFERENCE DRAWINGS & PICTURES

SPRING TENSION

Cross Reference | NSN 5310-01-331-1281
Part Number Cage Code Manufacturer
AS32990C310630ANILLO INDUSTRIES, INC.DBA ANILLO INDUSTRIES
VN948YNP3C92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
MM891C358009MOELLER MANUFACTURING & SUPPLY, INC.
03A280C31W025NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
NS202859C380539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
NS202859-380539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5310-01-331-1281
Characteristic Specifications
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR5 SPRING TENSION
HOLE DIAMETER0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
OUTSIDE DIAMETER0.357 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
RECESS DIAMETER0.238 INCHES MINIMUM AND 0.248 INCHES MAXIMUM
MATERIAL THICKNESS0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM
RECESS ANGLE40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM