NSN 5310-01-380-2961

Part Details | HEXAGON CASTELLATED SELF-LOCKING NUT

5310-01-380-2961 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.

Alternate Parts: 50FC428, 50FC-428, SMB586385, 5310-01-380-2961, 01-380-2961, 5310013802961, 013802961

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 17, 199301-380-296129725 ( NUT, SELF-LOCKING, CASTELLATED, HEXAGON )
REFERENCE DRAWINGS & PICTURES

CASTELLATED, HEXAGON

Cross Reference | NSN 5310-01-380-2961
Part Number Cage Code Manufacturer
50FC-42870318ALLMETAL SCREW PRODUCTS CORP.DBA ALL METAL SCREW PRODUCTS
SMB58638580063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5310-01-380-2961
Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
NUT STYLE CASTELLATED, HEXAGON
NUT HEIGHT0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
WIDTH ACROSS FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
BEARING SURFACE TYPE
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN