5305-00-688-1262 SCREW,MACHINE Index 5310-00-688-1264 WASHER,FLAT

National Stock Number:
5310-00-688-1263

Federal Supply Class:
5310

National Item Identification Number:
006881263

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:
S6110-211280TFG3ADK MACHINE INC
S6110-2112854878ROTAIR AEROSPACE CORP
S6110-2112855064LOGISTICAL SUPPORT, LLC
S6110-2112878286SIKORSKY AIRCRAFT CORPORATION
S6110-211288H749PERKINS MACHINE CO


Techincal Specification:
DRIVE POINT DEPTH0.0625 INCHES NOMINAL
DRIVE POINT QUANTITY8
DRIVE POINT WIDTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6381 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL THREAD SIZE0.750 INCHES
NUT DIAMETER1.376 INCHES MINIMUM AND 1.396 INCHES MAXIMUM
NUT STYLEROUND
NUT THICKNESS0.187 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
THREAD SERIESUNEF
THREAD QUANTITY PER INCH20


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