NSN 5310-00-297-3720

Part Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-00-297-3720 A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Alternate Parts: EB1216, 12NH12, 12NH-12, 699738, 69973-8, 761AS1528, 761AS152-8, 6128768, 612876-8, 386B204012, 1129E01 FIND 72, EB1216, SS508812, SS5088-12, 8461095, 5310-00-297-3720, 00-297-3720, 5310002973720, 002973720

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-297-372029729 ( NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE HEXAGON )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5310-00-297-3720
Part Number Cage Code Manufacturer
EB121615653ARCONIC GLOBAL FASTENERS & RINGS,INC.
12NH-12019L2FITZ AEROSPACE, LLCDBA ESNA
69973-873030HAMILTON SUNDSTRAND CORPORATION
761AS152-830003NAVAL AIR SYSTEMS COMMAND MANAGEDORIGINAL DESIGN ACTIVITY NOT
612876-880020NAVAL AIR WARFARE CENTER AIRCRAFTDIVISION CODE 4.8.8.0.0.B BLDG 148-2
386B20401290099NORTHROP GRUMMAN SYSTEMS CORPORATIONDBA NORTHROP GRUMMAN MARINE SYSTEMS
1129E01 FIND 7290099NORTHROP GRUMMAN SYSTEMS CORPORATIONDBA NORTHROP GRUMMAN MARINE SYSTEMS
EB1216R1120SATAIR A/S
SS5088-1278286SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY
846109519200US ARMY ARDEC RDECOM
Technical Data | NSN 5310-00-297-3720
Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
NUT STYLE DOUBLE HEXAGON
WASHER OUTSIDE DIAMETER1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
OVERALL HEIGHT0.781 INCHES NOMINAL
WASHER THICKNESS0.185 INCHES NOMINAL
WIDTH ACROSS FLATS0.927 INCHES MINIMUM AND 0.943 INCHES MAXIMUM
LOCKING FEATURE PREVAILING TORQUE WITH NONMETALLIC INSERT
TEMP RATING250.0 DEG FAHRENHEIT NOMINAL