Part Details | HEXAGON PLAIN NUT
5310-01-221-3021 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: 874531009 ITEM 48, 87453-1009 ITEM 4-8, 1034645417 ITEM 48, 103-4645417 ITEM 4-8, 5310-01-221-3021, 01-221-3021, 5310012213021, 012213021
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | NOV 26, 1985 | 01-221-3021 | 01857 ( NUT, PLAIN, HEXAGON ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
CONFIGURATION A
Cross Reference | NSN 5310-01-221-3021
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 87453-1009 ITEM 4-8 | 96169 | ELECTRIC BOAT CORPORATION |
| 103-4645417 ITEM 4-8 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
Technical Data | NSN 5310-01-221-3021
| Characteristic | Specifications |
|---|---|
| THREAD SERIES | UNC |
| NOMINAL THREAD SIZE | 3.000 INCHES |
| THREAD QUANTITY PER INCH | 4 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| NUT STYLE | HEXAGON |
| NUT HEIGHT | 2.518 INCHES MINIMUM AND 2.638 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 4.350 INCHES MINIMUM AND 4.500 INCHES MAXIMUM |
| HOLE CONFIGURATION STYLE | CONFIGURATION A |
| HOLE TYPE AND QUANTITY | 2 TAPPED |
| HOLE NOMINAL THREAD DIAMETER | 0.625 INCHES |
| HOLE THREAD QUANTITY PER INCH | 11 |
| BEARING SURFACE TYPE | CHAMFERED |