4730-01-092-6954 LOCKNUT,TUBE FITTING Index 5310-01-092-6956 NUT,SELF-LOCKING,BLIND RIVET

National Stock Number:
5310-01-092-6955

Federal Supply Class:
5310

National Item Identification Number:
010926955

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:
70351-08173-10178286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
THREAD SERIESUNJ
NOMINAL THREAD SIZE4.125 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTSILVER OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSS8487 MFR REF SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM
NUT STYLEROUND
FLANGE THICKNESS0.315 INCHES MINIMUM AND
0.325 INCHES MAXIMUM
DRIVE POINT DEPTH0.165 INCHES NOMINAL
NUT DIAMETER4.730 INCHES NOMINAL
NUT THICKNESS0.435 INCHES MINIMUM AND
0.445 INCHES MAXIMUM
DRIVE POINT WIDTH0.375 INCHES NOMINAL
UNDERCUT THICKNESS0.060 INCHES NOMINAL
DRIVE POINT QUANTITY9
HOLE CONFIGURATION STYLECONFIGURATION F
HOLE TYPE AND QUANTITY9 DRILLED
DRILLED HOLE DIAMETER0.218 INCHES NOMINAL
PRECIOUS MATERIAL AND LOCATIONSURFACE SILVER
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, BEARING RETAINING-PLANETARY ASSEMBLY, MAIN GEARBOX
THE MANUFACTURERS DATA
MANUFACTURERS CODE78286
DESIGN CONTROL REFERENCE70351-08173-101


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