3m 3G-OTH-552164 — Technical Specifications

Name: 3m 3G-OTH-552164 3M Firestop Block: 8 in Overall Lg, 5.12 in Overall Wd, 2 hr Fire Rating, 12 PK (MPN B258). Key specifications — Color: Maroon; Fire Rating: 2 hr; Brand: 3M.
Brand: 3m

The 3M Firestop Block (MPN B258) is a maroon firestop plug and block, 8 inches long and 5.12 inches wide, with a 2-hour fire rating, sold in a 12-pack. This 3M product provides a passive fire protection solution for sealing penetrations in fire-rated assemblies.

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Technical Specifications

Parameter	Value
Type	12 PK
Brand	3M
Color	Maroon
Overall Wd	5.12 in
Fire Rating	2 hr
Manufacturer Part Number	B258