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National Stock Number: 5310-00-253-2798
Federal Supply Class: 5310
National Item Identification Number: 002532798
Description: NUT,PLAIN,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.)
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Manufacturer Information:
12387305-50 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | 2 1-4 X 4 1-2 U NC HEX (SPL) | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | FFN836 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | D2617 PIECE-6 | 87045 | WALZ & KRENZER INC | MS51967-50 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 2 1/4 - 4 1/2 U NC - 2B | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
THREAD SERIES | UNC | NOMINAL THREAD SIZE | 2.250 INCHES | THREAD QUANTITY PER INCH | 4.5 | THREAD CLASS | 2B | THREAD DIRECTION | RIGHT-HAND | MATERIAL | STEEL OVERALL | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | HARDNESS RATING | 90.0 ROCKWELL B MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM | NUT STYLE | HEXAGON | NUT HEIGHT | 1.874 INCHES MINIMUM AND | | 1.970 INCHES MAXIMUM | WIDTH ACROSS FLATS | 3.262 INCHES MINIMUM AND | | 3.375 INCHES MAXIMUM | BEARING SURFACE TYPE | FLAT OR | | CHAMFERED | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND | | 4 STYLE AND | | B GRADE | SPEC/STD CONTROLLING DATA | | MANUFACTURERS CODE | 81348 | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFN836 | MANUFACTURERS CODE | 96906 | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51967-50 |
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