Discussion Forum: Thread 256974

 Author: 1271moggy View Messages Posted By 1271moggy
 Posted: Sep 5, 2019 07:51
 Subject: What year were part numbers introduced?
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 Topic: Catalog
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1271moggy (155)

Location:  United Kingdom, England
Member Since Contact Type Status
Aug 5, 2008 Contact Member Seller
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Store: Spare Bits South West
I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all
 Author: HoosierNinja View Messages Posted By HoosierNinja
 Posted: Sep 5, 2019 11:37
 Subject: Re: What year were part numbers introduced?
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 Topic: Catalog
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HoosierNinja (1124)

Location:  USA, Indiana
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Apr 1, 2001 Contact Member Seller
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Store: Hoosier Daddy
In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

The one or two digit numbers indicate molds and mold cavities in the actual machine
that creates the parts from liquid plastic injection. As far as what year TLC
started putting part numbers on the parts themselves, I'm afraid I do not
know.

David
 Author: cosmicray View Messages Posted By cosmicray
 Posted: Sep 5, 2019 15:27
 Subject: Re: What year were part numbers introduced?
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 Topic: Catalog
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cosmicray (3573)

Location:  USA, Florida
Member Since Contact Type Status
Oct 1, 2000 Contact Member Seller
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Store Closed Store: Cosmic Toys
In Catalog, crazylegoman writes:
  In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

The one or two digit numbers indicate molds and mold cavities in the actual machine
that creates the parts from liquid plastic injection. As far as what year TLC
started putting part numbers on the parts themselves, I'm afraid I do not
know.

David

Part number such as 3001 for a 2x4 brick ? Certainly the older CA parts had that,
so it must have been in the earliest days.

Nita Rae
 Author: WoutR View Messages Posted By WoutR
 Posted: Sep 5, 2019 15:39
 Subject: Re: What year were part numbers introduced?
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 Topic: Catalog
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WoutR (964)

Location:  Netherlands, Zuid-Holland
Member Since Contact Type Status
Mar 8, 2011 Contact Member Buyer
Buying Privileges - OK
In Catalog, cosmicray writes:
  In Catalog, crazylegoman writes:
  In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

The one or two digit numbers indicate molds and mold cavities in the actual machine
that creates the parts from liquid plastic injection. As far as what year TLC
started putting part numbers on the parts themselves, I'm afraid I do not
know.

David

Part number such as 3001 for a 2x4 brick ? Certainly the older CA parts had that,
so it must have been in the earliest days.

Nita Rae

The CA parts did have mold numbers (5 04) but not the part number (3176)
 Author: 1271moggy View Messages Posted By 1271moggy
 Posted: Sep 6, 2019 03:54
 Subject: Re: What year were part numbers introduced?
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 Topic: Catalog
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1271moggy (155)

Location:  United Kingdom, England
Member Since Contact Type Status
Aug 5, 2008 Contact Member Seller
Buying Privileges - OKSelling Privileges - OK
Store: Spare Bits South West
In Catalog, WoutR writes:
  In Catalog, cosmicray writes:
  In Catalog, crazylegoman writes:
  In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

The one or two digit numbers indicate molds and mold cavities in the actual machine
that creates the parts from liquid plastic injection. As far as what year TLC
started putting part numbers on the parts themselves, I'm afraid I do not
know.

David

Part number such as 3001 for a 2x4 brick ? Certainly the older CA parts had that,
so it must have been in the earliest days.

Nita Rae

The CA parts did have mold numbers (5 04) but not the part number (3176)

Thank you all for your replies. I am now going to pose another question - What
are 'CA' parts? Sorry to be so thick.
Linda
 Author: Soviet View Messages Posted By Soviet
 Posted: Sep 6, 2019 04:11
 Subject: Re: What year were part numbers introduced?
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 Topic: Catalog
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Soviet (351)

Location:  Poland, w. Pomorskie
Member Since Contact Type Status
Mar 20, 2018 Contact Member Seller
Buying Privileges - OKSelling Privileges - OK
Store: Flat Tile
In Catalog, 1271moggy writes:
  In Catalog, WoutR writes:
  In Catalog, cosmicray writes:
  In Catalog, crazylegoman writes:
  In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

The one or two digit numbers indicate molds and mold cavities in the actual machine
that creates the parts from liquid plastic injection. As far as what year TLC
started putting part numbers on the parts themselves, I'm afraid I do not
know.

David

Part number such as 3001 for a 2x4 brick ? Certainly the older CA parts had that,
so it must have been in the earliest days.

Nita Rae

The CA parts did have mold numbers (5 04) but not the part number (3176)

Thank you all for your replies. I am now going to pose another question - What
are 'CA' parts? Sorry to be so thick.
Linda

Cellulose Acetate plastic, which LEGO phased out in 1963.
 Author: 1271moggy View Messages Posted By 1271moggy
 Posted: Sep 6, 2019 04:22
 Subject: Re: What year were part numbers introduced?
 Viewed: 48 times
 Topic: Catalog
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1271moggy (155)

Location:  United Kingdom, England
Member Since Contact Type Status
Aug 5, 2008 Contact Member Seller
Buying Privileges - OKSelling Privileges - OK
Store: Spare Bits South West
In Catalog, Soviet writes:
  In Catalog, 1271moggy writes:
  In Catalog, WoutR writes:
  In Catalog, cosmicray writes:
  In Catalog, crazylegoman writes:
  In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

The one or two digit numbers indicate molds and mold cavities in the actual machine
that creates the parts from liquid plastic injection. As far as what year TLC
started putting part numbers on the parts themselves, I'm afraid I do not
know.

David

Part number such as 3001 for a 2x4 brick ? Certainly the older CA parts had that,
so it must have been in the earliest days.

Nita Rae

The CA parts did have mold numbers (5 04) but not the part number (3176)

Thank you all for your replies. I am now going to pose another question - What
are 'CA' parts? Sorry to be so thick.
Linda

Cellulose Acetate plastic, which LEGO phased out in 1963.

Thank you very much. Everyday I learn something new from the forum.
 Author: WoutR View Messages Posted By WoutR
 Posted: Sep 5, 2019 15:29
 Subject: Re: What year were part numbers introduced?
 Viewed: 48 times
 Topic: Catalog
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WoutR (964)

Location:  Netherlands, Zuid-Holland
Member Since Contact Type Status
Mar 8, 2011 Contact Member Buyer
Buying Privileges - OK
In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

If I remember correctly, around 1985.
 Author: SezaR View Messages Posted By SezaR
 Posted: Sep 6, 2019 04:42
 Subject: Re: What year were part numbers introduced?
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SezaR (1760)

Location:  Canada, British Columbia
Member Since Contact Type Status
Jan 15, 2015 Contact Member Seller
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Store: Sezar's trains
In Catalog, WoutR writes:
  In Catalog, 1271moggy writes:
  I have just wondering if anyone knew when Lego started putting the part number
on the pieces. I have just found part 3176 which looks fairly 'new'
but has no part number. It just has the numbers 5 and 04 on the underside.
What do these numbers refer to?
Apologies if this has been asked before - I cannot find a thread.
Thanking you all

If I remember correctly, around 1985.

You remember correctly but the roof 4509 coming with sets 7755 and 7727 in 1983
had part number since its earliest production.

Some old baseplates from 60s or 70s had also part number.