In that it is marked NO 37748 then I have to assume that is a manufacturing Part #.
And if so, one might be wasting their time trying to figure out what it means.
And what I mean by that is,
. the #s might have to be read as, to wit:
3
. 77
. 48
(3-77-48)
3
774
8
(3-774-8)
37
. 74
8
(37-74-8)
37
. 7
48
(37-7-48)
377
48
(377-48)
Manufacturers have all sorts of different numbering schemes so that they can keep in-house track of what they are producing for sell to vendors.
In other words,
. part #s are the employees language
.. and that is bout all they talk
from sales orders to finished goods shipment.
HA, the boss man might say,
. We just got an order for a thousand 37748s and they want them by next Friday
. so get them made and shipped by next Wednesday noon.
And every employee knows what has to be done without any further explanation.