This design is identified by a 5/16" pilot and ball groove which is nearly round. It is similar in appearance to the Industrial interchange and care must be taken to correctly identify it.

1/4" Plugs

12-324

NPT	Material	Part Number	Packaging
1/4"	Steel	12-324	Bulk
1/4"	Steel	CP37	Bulk
1/4"	Steel	CP37-100	Bulk
1/4"	Steel	12-325	Carded
1/4"	Steel	12-325-2	Carded
3/8"	Steel	CP37-03	Bulk

CP38

NPT	Material	Part Number	Packaging
1/4"	Steel	CP38	Bulk
1/4"	Steel	CP38-100	Bulk
1/4"	Steel	12-335	Carded
1/4"	Steel	12-335-2	Carded
3/8"	Steel	CP38-23	Bulk

CP37-42

NPT	Material	Part Number	Packaging
1/4"	Steel	CP37-42	Bulk

CP37-44L

NPT	Material	Part Number	Packaging
3/8"	Steel	CP37-44L	Bulk

1/4" Couplers

C37

NPT	Material	Part Number	Packaging
1/4"	Steel	C37	Bulk
1/4"	Steel	C37-100	Bulk
1/4"	Brass	13-324	Bulk
1/4"	Brass	13-325	Carded
3/8"	Steel	C37-03	Bulk

C38

NPT	Material	Part Number	Packaging
1/4"	Steel	C38	Bulk
1/4"	Steel	C38-100	Bulk
1/4"	Brass	13-334	Bulk
1/4"	Brass	13-334-07	Bulk
1/4"	Brass	13-335	Carded
1/4"	Steel	C46	Bulk
1/4"	Steel	13-775	Carded
3/8"	Steel	C38-23	Bulk

C38-42

NPT	Material	Part Number	Packaging
1/4"	Steel	C38-42	Bulk
3/8"	Steel	C38-44	Bulk

3/8" Plugs

3/8" Couplers

C35

NPT	Material	Part Number	Packaging
3/8"	Steel	C35	Bulk

C36

NPT	Material	Part Number	Packaging
3/8"	Steel	C36	Bulk

CP35

NPT	Material	Part Number	Packaging
3/8"	Steel	CP35	Bulk

CP36

NPT	Material	Part Number	Packaging
3/8"	Steel	CP36	Bulk