5310-00-208-5979 NUT,PLAIN,KNURLED Index 5310-00-208-5987 NUT,PLAIN,ROUND

National Stock Number:
5310-00-208-5986

Federal Supply Class:
5310

National Item Identification Number:
002085986

Description:
NUT,PLAIN,ROUND

Detail:
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. See also NUT (1), PLAIN, KNURLED. (When height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)


Manufacturer Information:
S1610-2309478286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
DRIVE POINT QUANTITY8
DRIVE POINT WIDTH0.375 INCHES NOMINAL
DRIVE POINT DEPTH0.125 INCHES NOMINAL
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL
NOMINAL THREAD SIZE3.500 INCHES
NUT DIAMETER4.500 INCHES NOMINAL
NUT STYLEROUND
NUT THICKNESS0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH16
THREAD SERIESUN


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