ST-8000-8249

Externally ribbed cap and pin 152mm (6") and under
ST-8125
ST-8125
ST-8125
Size: 107mm (4.25")
Example in Photo: ITE (USA)
Photo Credit: Anonymous
Direct link to this insulator:
ManufacturerInsulator MarkingsCap MarkingsColorCountry
Chance(Note: Aluminum cap) 10000 M&E 5000 TEST ABCSky GrayUSA
Chance(Under-glaze Ink) (3 digit number)271/CHANCEGrayUSA
ITE(Incuse) (Year)(Note: Aluminum cap) 738 (ITE) 77-1// (ITE)Pumpkin OrangeUSA
O-B99 / LS / 5000 (O-B Logo) TEST / 10000 LBSSky GrayUSA
Victor(Under-glaze Ink) (Year)10000//VICTORPumpkin OrangeUSA
ST-8127
ST-8127
ST-8127
Size: 114mm (4.5")
Example in Photo: O-B (USA)
Photo Credit: Anonymous
Direct link to this insulator:
ManufacturerInsulator MarkingsCap MarkingsColorCountry
O-B2/82123/1500078-3001 // 565/(OB Logo)/10000LBWhiteUSA
ST-8130
ST-8130
ST-8130
Size: 114mm (4.5")
Example in Photo: THOMAS (USA)
Photo Credit: Mid Norris
Direct link to this insulator:
ManufacturerInsulator MarkingsCap MarkingsColorCountry
Thomas(Sand-blast) THOMAS / (Year)THOMAS // BTC // 10000LBS // 5996Pumpkin OrangeUSA
ST-8240
ST-8240
ST-8240
Size: 152mm (6")
Example in Photo: CHANCE (USA)
Photo Credit: Steve Coffman
Direct link to this insulator:
ManufacturerInsulator MarkingsCap MarkingsColorCountry
Chance(Under-glaze Ink) (Year) / Chance / 11,000 LB.(Note: Aluminum cap) A B C BrownUSA
Chance(Under-glaze Ink) (Year) / Chance / 11,000 LB.(Note: Aluminum cap) A B C GrayUSA