Parts list

Here is an update of the prefix codes I found, still not complete. List is best efforts, not perfect. I hope someone can tell us about the plating suffix.

A Engine assembly/part
B Transmission assembly/part
C Clutch assembly/part
D Suspension assembly/part
E Axel assembly/part
F Steering assembly/part
G Door assembly/part
H Cooling assembly/part
K Electrical
N Stabilizer parts
T Welt

2S Tube
3S Ball
4S Hose
5S Bearing
7S Clamp
8S Clip

KB Woodruff key
KZ Key, special

MA Sheet metal screw
MB Sheet metal screw
MC Sheet metal screw
MD Sheet metal screw
ME Sheet metal screw
MG Sheet metal screw
MK Sheet metal screw

NE Slotted nut
NF Nut, Hex fine thread
NH Check nut (jam nut)
NJ ?
NK Castellated nut
NM Acorn
NN Nut, Hex coarse thread
NZ Nut, Special

PB Clevis pin
PC Taper pin
PE Cotter pin
PF Plug, square head
PG Pipe plug
PH Pipe plug, headless
PJ Expansion plug
PM Grove pin
PZ Pin, Special

RA Rivit, Round head
RE Rivit, Oval head- brass
RZ Rivit, Special

SA Screw, Hex coarse thread
SF Screw, Hex fine thread
SG Screw, Fillister head fine thread
SH Screw, Round head fine
SJ Screw, Flat head fine
SK Screw, Oval head fine
SL Screw, Machine screw coarse
SM Screw, Slotted round head coarse
SN Screw, Flat head coarse
SP Screw, Oval head coarse
SS Screw, Oval head wood
ST Screw, Flat head wood
SX Screw, Set screw coarse
SZ Screw, Special

WA Lock washer, S.A.E Standard
WB Lock washer, S.A.E Heavy
WC Washer, S.A.E. light
WD Washer, S.A.E. plain
WG Washer, Flush finishing
WJ Lock washer, Internal tooth shake-proof
WK Lock washer, Countersunk shake-proof
WZ Washer, Special

12S Commercial hardware
14S Cloth material

The parts list is a great reference for restoration of our Cords. I find it interesting that a ?Talking Code? is used. That description refers to a part number scheme where the numbers describe the part to someone familiar with the system. For example...

Heavy lock washers begin with WB.
The next digit is size in 1/16ths.
The suffix is the plating option.

From this WB7E6 is a 7/16 S.A.E. heavy lock washer, WB8 is a 1/2 S.A.E heavy lock washer. What I don?t yet know is the definition of the various plating options (E6 in the first example, the second is un-plated).

I bring this up because there is that there is a lot of good information for restorers in the parts list if we understand the code. Knowing the meaning of the suffix will give us the correct plating for each fastener. Does anyone know what the suffix codes E6 and F6 are?

Is there a published explanation of the numbering system around anywhere? I would appreciate a copy if it exists. Otherwise I will generate an explanation as best I can. By publishing this, the plating for each fastener will be known, documented by the parts list. Perhaps it could be published in the ?Restoration Manuals? section of the forum.


Regards,
Tom Hussey