5310-00-687-6263 NUT,PLAIN,CLINCH Index 5310-00-687-6265 NUT,PLAIN,KNURLED

National Stock Number:
5310-00-687-6264

Federal Supply Class:
5310

National Item Identification Number:
006876264

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:
S6110-2309778286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
THREAD SERIESUNS
NOMINAL THREAD SIZE2.438 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM
NUT STYLEROUND
DRIVE POINT DEPTH0.094 INCHES MINIMUM AND
0.114 INCHES MAXIMUM
NUT DIAMETER3.141 INCHES MINIMUM AND
3.161 INCHES MAXIMUM
NUT THICKNESS0.396 INCHES MINIMUM AND
0.416 INCHES MAXIMUM
DRIVE POINT WIDTH0.240 INCHES MINIMUM AND
0.260 INCHES MAXIMUM
DRIVE POINT QUANTITY6
NUT COUNTERBORE DEPTH0.083 INCHES MINIMUM AND
0.103 INCHES MAXIMUM NUT
COUNTERBORE DIAMETER2.640 INCHES MINIMUM AND
2.650 INCHES MAXIMUM NUT
COUNTERSINK ANGLE109.5 DEGREES MINIMUM AND
110.5 DEGREES MAXIMUM NUT
THE MANUFACTURERS DATA
MANUFACTURERS CODE78286
DESIGN CONTROL REFERENCES6110-23097


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