5310-00-208-5986 NUT,PLAIN,ROUND Index 4730-00-208-5989 COUPLING ASSEMBLY,HOSE

National Stock Number:
5310-00-208-5987

Federal Supply Class:
5310

National Item Identification Number:
002085987

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:
S1610-2305778286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
DRIVE POINT DEPTH0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
DRIVE POINT QUANTITY8
DRIVE POINT WIDTH0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
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 SIZE5.750 INCHES
NUT DIAMETER6.485 INCHES MINIMUM AND 6.505 INCHES MAXIMUM
NUT STYLEROUND
NUT THICKNESS0.312 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH16
THREAD SERIESUN


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