5310-01-557-0717 NUT,SELF-LOCKING,HEXAGON Index 5310-01-557-0742 WASHER,FLAT

National Stock Number:
5310-01-557-0725

Federal Supply Class:
5310

National Item Identification Number:
015570725

Description:
NUT,SELF-LOCKING,HEXAGON

Detail:
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)


Manufacturer Information:
041028132MY9MILLER INDUSTRIES TOWING EQUIPMENT INC
1001904961C19MIL-COTS CORPORATION
100920199062TUTHILL CORPORATION DBA REYCO/GRANNING DIV REYCO GRANNING
12759-006530Y3H3FASTENAL COMPANY
30114621EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.
372760Y3H3FASTENAL COMPANY
S0000141EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.
U0410281F9980JIGE INTERNATIONAL
Y00014957FAFH7SOFRAME


Techincal Specification:
LOCKING FEATURESELF-LOCKING
MATERIALSTEEL OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE0.875 INCHES
NUT HEIGHT0.724 INCHES MINIMUM AND 0.922 INCHES MAXIMUM
NUT STYLEHEXAGON
SPECIAL FEATURES7/8-9 GRADE C, ZINC PLATED TOP LOCK NUT
WIDTH ACROSS FLATS1.269 INCHES MINIMUM AND 1.315 INCHES MAXIMUM
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH9
THREAD SERIESUNC
BEARING SURFACE TYPECHAMFERED


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