Bosch Diesel Nozzle Numbers 1

[1Spike]

I was wondering if anyone knows the numbering system for last three digits of Bosch Diesel injector nozzles.
Ex. DN0SD273
D= Nozzle
N= Pintle nozzle; L= hole type; S= hole type seat nozzle (additional: L= long nozzle collar; without initial= short collar) (A/B/Z/without initial= details about fixing of the inlet)
0= spray cone angle
S= 17mm collar diameter; P = 14mm, R = 16mm, S = 17mm, T = 22mm, U = 30mm, V = 42mm, W = 50mm
D= standard nozzle/ P= experimental type
273= serial number Larger number= Larger hole size????????????

 

[PJGD]

Some minor corrections:-

The first letter indicates where the nozzle was made, or in some cases where the design responsibility lies; eg. B = Britain (Lucas-CAV), R = France (Roto-Diesel) etc.

D = Nozzle (or Deuchland for Bosch?)

[BD]L = Short stem nozzle (Hole type)

[BD]LL = Long stem nozzle (Hole type)

[BD]N = Pintle Nozzle

[BDN]0 = Spray cone Angle

[BDN0]S = 6 mm nozzle needle diameter

[BDN0S]D = Delay type nozzle (with obdurator)

[BDN0S]273 = Unique Identifier (special features)
These include pintle profile (converging/diverging), flow lift curve details, anti-coking flats etc. This number simply increments as a new design requirement is requested.

I see that this particular nozzle is used on Audi, VW, and Nissan.

PJGD