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National Stock Number:
5310-01-218-1466
Federal Supply Class:
5310
National Item Identification Number:
012181466
Description:
NUT,SELF-LOCKING,CASTELLATED,HEX
Detail:
A NUT HAVING 6 FLAT SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. THE SLOTS WHEN USED IN CONJUNCTION WITH A SOLID OR SPLIT (COTTER) PIN, ACT AS AN EXTRA "FAIL SAFE" FEATURE IN CRITICAL APPLICATIONS. EXCLUDES NUT (1), SELF-LOCKING, SLOTTED, HEXAGON.
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Manufacturer Information:
| 4062287 | 77445 | RTX CORPORATION | | 4062288 | 77445 | RTX CORPORATION | | 4062289 | 77445 | RTX CORPORATION | | 5310PL0751352 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 82158-428 | 56878 | SPS TECHNOLOGIES, LLC | | VN1320(DF)-048 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VN1320DF048 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| BEARING SURFACE TYPE | WASHER FACED | | COUNTERBORE DIAMETER | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM BASE | | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD SIZE | 0.250 INCHES | | NUT HEIGHT | 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM | | NUT STYLE | CASTELLATED, HEXAGON | | WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM | | TEMP RATING | 850.0 FAHRENHEIT MAXIMUM | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNJF | | THREAD QUANTITY PER INCH | 28 |
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