Robert Henley Posted February 15, 2019 Report Share Posted February 15, 2019 What is a lot numbered part?: https://www.gunbroker.com/Item/799849369 I seem to recall something about non-serial numbered MP40 bolts that were replacement bolts. Is that what a lot numbered part is, or what was the practice during the war era if a part needed replacing? Thanks, Robert Link to comment Share on other sites More sharing options...
Petroleum 1 Posted February 15, 2019 Report Share Posted February 15, 2019 I have heard the term armorers replacement barrel whenever a part like this shows up without a serial number. As long as it has some Waffenamt-marks on it i guess it makes sense. Link to comment Share on other sites More sharing options...
TSMGguy Posted February 15, 2019 Report Share Posted February 15, 2019 This one has the codes applied by the manufacturer, but no serial number, as you can see. The small sunburst stamp shows that this barrel was sent back for correction or rework. The presence of three inspection WaA marks show that it eventually passed inspections and was accepted. The large eagle on the barrel shank is the firing proof. Right, I'd go with the "armorer's spare" theory, too, since Steyr commonly seral numbered barrels used in regular series production. Link to comment Share on other sites More sharing options...
Petroleum 1 Posted February 15, 2019 Report Share Posted February 15, 2019 Some barrels have the mfg SEG stamp yet others do not? Link to comment Share on other sites More sharing options...
TSMGguy Posted February 15, 2019 Report Share Posted February 15, 2019 MP-40 barrel production codes: Bö = Bohler. Stg = Possibly Steyer. This code has been observed with a number, like Stg 74, Stg 76, Stg 80. Probably the number is a steel lot number.Kur = Steyr Daimler Puch A.G., after 1941.ar = Mauser Werke. Berlin-Borsigwald. Link to comment Share on other sites More sharing options...
huggytree Posted February 15, 2019 Report Share Posted February 15, 2019 Mine is stg marked Show a pic of the seg? Link to comment Share on other sites More sharing options...
Robert Henley Posted February 16, 2019 Author Report Share Posted February 16, 2019 Mine is stg marked Show a pic of the seg? See the 5th picture in the GB link in OP above. I guess that's an SEG. Link to comment Share on other sites More sharing options...
Petroleum 1 Posted February 20, 2019 Report Share Posted February 20, 2019 Mine is stg marked Show a pic of the seg? See the 5th picture in the GB link in OP above. I guess that's an SEG.Looking at that pic again i believe it is a STG and not SEG. It is a lowercase t with part of the t cut off. Link to comment Share on other sites More sharing options...
TSMGguy Posted February 20, 2019 Report Share Posted February 20, 2019 (edited) Mine is stg marked Show a pic of the seg? See the 5th picture in the GB link in OP above. I guess that's an SEG.Looking at that pic again i believe it is a STG and not SEG. It is a lowercase t with part of the t cut off.Bingo! The stg stamping die broke and continued to be used. Edited February 20, 2019 by TSMGguy Link to comment Share on other sites More sharing options...
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