4920-00-587-3980 TORQUE REACTOR,GEAR Index 5340-00-587-3983 STRAP,RETAINING

National Stock Number:
5310-00-587-3981

Federal Supply Class:
5310

National Item Identification Number:
005873981

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:
5130H34-00681996U S ARMY AVIATION AND MISSILE COMMAND
5310H34-00681996U S ARMY AVIATION AND MISSILE COMMAND
S1610-23014-200301PARAMOUNT PRODUCTS CORP
S1610-23014-278286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
DRIVE POINT DEPTH0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
DRIVE POINT QUANTITY8
DRIVE POINT WIDTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
COUNTERSINK ANGLE90.0 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 SIZE1.938 INCHES
NUT DIAMETER3.000 INCHES NOMINAL
NUT STYLEROUND
NUT THICKNESS0.536 INCHES MINIMUM AND 0.556 INCHES MAXIMUM
SMALL END DIAMETER2.620 INCHES MINIMUM AND 2.627 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD PITCH DIAMETERS+1.8969 TO 1.9021 INCHES
THREAD SERIESUN
THREAD QUANTITY PER INCH16
UNDERCUT THICKNESS0.346 INCHES MINIMUM AND 0.386 INCHES MAXIMUM


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