H-D #4140-42 (44250-42) H-D #0345 (9852) GREASE FITTING & EXTENSION NIPPLE Little known - often missed - EXTENSION NIPPLE WW2 Military required - used on 1942 - 1957 Harley Knuckle, UL & Pan rigid frame for Brake Crossover Shaft Grease Fitting External thread is 5/16-32 Internal Thread is 5/16-32 (for Grease Fitting) (see photos for comparison to similar 45 Front Hub part) PARKERIZED - CADMIUM finish
H-D #4140-42 (44250-42) H-D #0345 (9852) GREASE FITTING & EXTENSION NIPPLE Little known - often missed - EXTENSION NIPPLE WW2 Military required - used on 1942 - 1957 Harley Knuckle, UL & Pan rigid frame for Brake Crossover Shaft Grease Fitting External thread is 5/16-32 Internal Thread is 5/16-32 (for Grease Fitting) (see photos for comparison to similar 45 Front Hub part) PARKERIZED - CADMIUM finish
