Part Details | HEXAGON PLAIN NUT
5310-00-057-1241 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.)
Alternate Parts: 571241, FFB571TYPEA, 5310-00-057-1241, 00-057-1241, 5310000571241, 000571241
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | JAN 01, 1963 | 00-057-1241 | 01857 ( NUT, PLAIN, HEXAGON ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON

Cross Reference | NSN 5310-00-057-1241
Part Number | Cage Code | Manufacturer |
---|---|---|
571241 | 21450 | ARMY WEAPONS COMMANDATTN AMSWE-REE-S |
FFB571TYPEA | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
Technical Data | NSN 5310-00-057-1241
Characteristic | Specifications |
---|---|
THREAD SERIES | UNF |
NOMINAL THREAD SIZE | 0.875 INCHES |
THREAD QUANTITY PER INCH | 14 |
THREAD CLASS | 2B |
THREAD DIRECTION | RIGHT-HAND |
NUT STYLE | HEXAGON |
NUT HEIGHT | 0.724 INCHES MINIMUM AND 0.776 INCHES MAXIMUM |
WIDTH ACROSS FLATS | 1.2690 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM |
BEARING SURFACE TYPE | H$DWF |
NONDEFINITIVE SPEC/STD DATA | A TYPE |