NSN 5310-01-331-7616

Part Details | PRELOAD INDICATING WASHER

5310-01-331-7616 An item round in shape having a centrally located hole. It consists of two concentric (inner and outer) steel rings, the inner ring is smaller in diameter and higher than the other. These rings are sandwiched between two close tolerance plain washers. As the assembly is tightened, the inner ring takes the load and is deformed until the loose outer ring is bound between the upper and lower plain washers and cannot be moved. The tightened load in the bolt is equal to the load required to compress the inner ring. When the binding of the outer ring occurs and can not be moved, it is a sign that the desired load has been reached.

Alternate Parts: PLI55.9, PLI-5-5.9, 5310-01-331-7616, 01-331-7616, 5310013317616, 013317616

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 27, 199001-331-761642430 ( WASHER, PRELOAD INDICATING )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5310-01-331-7616
Part Number Cage Code Manufacturer
PLI-5-5.980539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5310-01-331-7616
Characteristic Specifications
OUTSIDE DIAMETER0.583 INCHES MINIMUM AND 0.603 INCHES MAXIMUM
UNLOADED LENGTH0.208 INCHES MINIMUM
RECESS ANGLE120.0 DEGREES NOMINAL