Equivalent BAC code for HL19PB70-6-10 2

[zuccari]

Anyone know the equivalent BAC code for the Hilok HL19PB70-6-10?

 

[rerig]

Per Boeing D-590 Vendor-to-Boeing CR Index:

HL19PB70-6-10 = Pin BACB30FN-6-10 + Collar BACC30M6

The HL Part number is for a Hi-loc and Collar combination.
HL19PB-6-10 + HL70-6

 

[zuccari]

Thanks rerig
Is the spec D-590 available somewhere?

 

[rerig]

It is a Boeing Publication.
It is online at My Boeing Fleet. ($$$$$)
We are low tech (less $$) and get a microfilm tape from Boeing Tech Pub Support.

 

[DELTA98]

hl19pb is a cad plate csk shr hi lok with collar hl86

sub fastener is s4931919-6-( ) as per matl sub manual.

Later ace

 

[DELTA98]

Available from huck corporation or interfast corp in Toronto, Ontario.

 

[Kenneth]

The 2024-T6 aluminum, threaded frangible collar correctly identified by rerig (HL70-6:

http://www.hi-shear.com/standards/hl70.pdf)

is not the same as the 303Se tension-application collar identified by UG24U (HL86:

http://www.hi-shear.com/standards/hl86.pdf).

The "tension" application HL86 collar should never be used with shear head pins (such as the HL19:

http://www.hi-shear.com/standards/hl19.pdf)

as the preload developed by the tension-application collar torque-off value can overstress, or even fail, the shear head pin.

The HL19 (as noted by UG24U) is a cadmium plated, alloy steel, 100° Flush Shear Head Hi-Lok Pin. The Hi-Lok Pin has a hex recess in the threaded end of the pin that accepts a hex key to facilitate installation (prevent fastener rotation) during torquing of the collar in clearance fit installations (see bottom of page at

http://www.hi-shear.com/fastener_hl.htm).

The pin can also be installed in interference fit holes (and the collar installed without the use of a hex key).

The S4931919 "MD" Pin (

http://www.huck.com/aerospace/products/threaded/mdpins/)

which is identified by UG24U as a substitute part for the HL19 Hi-Lok Pin is a 6Al-4V titanium crown flush shear head threaded pin. It does not have the hex recess of the Hi-Lok pin and is intended solely for installation in interference fit installations. While there’s nothing “wrong” with this part, it is not a direct (or even necessarily good) substitution where the HL19PB has been called out…

In short:

rerig = good advice
UG24U = ???