Which old part number correlates with what Crownsert® part number made of Alloy Steel?
This cross-reference helps identify which old insert part number corresponds to the matching Crownsert® alloy steel threaded insert. It is intended for maintenance, repair, purchasing, and replacement situations where an older SR or SRW reference must be converted into a current Crownsert part number.
The tables below cover Crownserts made from Alloy Steel 4130 per AMS 6370. Both locking and non-locking versions are listed, and the heavy-duty SRW references have been added where they match alloy steel Crownserts in the current database.
How to use this alloy steel cross-reference
Start with the old part number in the left column, then use the Crownsert part number in the right column as the current equivalent. The Crownsert code links directly to the corresponding product record, and the old reference is also linked because these supplier-reference records are now present in the database.
In general, CS and CSH indicate non-locking Crownserts, while CSL and CSHL indicate locking Crownserts. The H series identifies the heavy-duty version.

Locking Alloy Steel Crownserts — Old SR to Crownsert Cross-Reference
These rows map old locking SR references to current locking alloy steel Crownserts in the CS/CSL family.
Non-Locking Alloy Steel Crownserts — Old SR to Crownsert Cross-Reference
These rows map old non-locking SR references to current non-locking alloy steel Crownserts in the CS family.
Locking Heavy-Duty Alloy Steel Crownserts — Old SRW to Crownsert Cross-Reference
These additional rows were added from the current database because the heavy-duty SRW references also match alloy steel Crownserts. Where both 0034 and 0036 old references exist for the same Crownsert, both are listed.
Non-Locking Heavy-Duty Alloy Steel Crownserts — Old SRW to Crownsert Cross-Reference
These additional rows map old non-locking heavy-duty SRW references to current CSH alloy steel Crownserts. Where both 0034 and 0036 old references exist for the same Crownsert, both are listed.
Frequently Asked Questions
What does the AD suffix mean in these Crownsert part numbers?
In this cross-reference, the AD suffix identifies the alloy steel version of the Crownsert. These products are listed in the database with Alloy Steel 4130 per AMS 6370 as the material.
What is the difference between SR and SRW old references?
SR references are used here for the standard Crownsert series. SRW references are used for the heavy-duty equivalents, which correspond to the CSH and CSHL Crownsert families.
Are locking and non-locking versions interchangeable?
No. Locking and non-locking inserts serve different installation requirements. When replacing an old part number, use the matching row from the correct locking or non-locking table.
Why are some heavy-duty Crownserts listed with two old references?
Some heavy-duty alloy steel Crownserts have more than one old SRW reference in the database. When both references point to the same Crownsert part number, both are shown so the cross-reference remains complete.