List of components whose use is restricted by §215.203 of this part.

A.   Air brakes:

The “K” type.

B.   Axles:

1. Former AAR alternate standard tubular type.

2. Axle with letters “RJ” stamped on the end of the journal.

C.   Couplers:

1. AAR type “D”, top or bottom operated.

2. AAR type “E” with 5 by 7 shank.

D.   Draft arrangement:

1. Miner FR-16 and FR-19-F draft gears.

2. Farlow draft attachment.

E.   Plain journal bearings:

Cartridge type.

F.   Roller bearings:

1. Nippon Sieko Kabushiki Kaish (NSK) size 612 by 12 (marked “AAR 11”).

2. Hyatt cylindrical bearing, all sizes (marked “AAR 2”).

3. SKF “Piggybacker” spherical roller, size 6 by 11 (marked “AAR 7”).

G.   Trucks:

1. Arch bar type.

2. Truck with cast steel pedestal side frame, short wheel base, and no bolster.

H.   Truck bolsters:

1. A bolster with one of the following pattern numbers listed according to manufacturer:

Open Table
A.S.F. Dresser (Symington) Birdsboro Lenoir car works
21183-B BO 5234 1458 CS-184.
        1468
21183-N BO 5263 1471 CS-611.
    BO 7076
21648-C BO 7076-A
22056-E BO 7115

2. Bolster cast before 1927.

3. Bolster without an identification mark or pattern number.

I.   1.   Truck side frames:

A side frame with one of the following pattern numbers listed according to manufacturer:

Open Table
A.S.F. National castings Buckeye Dominion
7273 33793-1B 3-1776 TF-5100
7323 F-420
21362 (cast prior to June 1941)
Open Table
Pittsburgh steel foundry Scullin steel Bettendorf Canadian steel foundry
31673 42-CS-180 UT 456 26565
4-1862
3-1674 4665
4-2045 4770
12897 4942
12921 5220
21263 5364
    5364-C
    5364-E
    5811-A
    5869-B
    6577-A

2. Side frame cast before 1927.

3. Side frame without an identification mark or pattern number.

4. Side frame with an “I”, “T”, or “L” section compression or tension member.

J.   Wheels:

1. Cast iron wheel.

2. Cast steel wheel marked “AAR X-2.”

3. Southern cast steel wheel manufactured before May 7, 1958.

4. Griffin, three-riser cast steel wheel, ball rim design, 70-ton capacity.

5. Griffin, three-riser cast steel wheel, two-wear, 70- and 50-ton capacity, 33 inch, (marked X-5 or CS-2).

6. Wrought steel wheel manufactured before 1927, as indicated by marking on wheel.

7. Cast steel wheel marked AAR X-4.

8. Davis cast steel wheel.

9. One-wear, 70-ton Southern (ABEX) U1 cast steel wheels dated May 7, 1958 through December 31, 1969.

A.   Wheels dated May 7, 1958, to January 1, 1964, are marked with the symbol “70T” cast on the back of the wheel plate; they are not marked “U-1.”

B.   Wheels dated January 1, 1964 through December 31, 1969, are marked with the symbols “CJ-33” and “U-1” or “70T” and “U-1” cast on the back of the wheel plate.

K.   Yokes:

1. Riveted type.

2. Keyless type.

3. Vertical key type.


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