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National Stock Number:
5310-00-432-3891
Federal Supply Class:
5310
National Item Identification Number:
004323891
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:
| 58703-720-27 | 56878 | SPS TECHNOLOGIES, LLC | | C330-720-27 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| BEARING SURFACE TYPE | CHAMFERED | | COUNTERSINK ANGLE | 120.0 DEGREES NOMINAL NUT | | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD SIZE | 0.438 INCHES | | NUT HEIGHT | 0.316 INCHES MINIMUM AND 0.328 INCHES MAXIMUM | | NUT STYLE | CASTELLATED, HEXAGON | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | TEMP RATING | 450.0 FAHRENHEIT NOMINAL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES | UNF | | WIDTH ACROSS FLATS | 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
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