Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
3M DBI-SALA Manhole Collar, 21 1/2 in Diameter, Green, Aluminum, Clamp-On Base - Davit System Bases
3M DBI-SALADavit System Bases

3M DBI-SALA Manhole Collar, 21 1/2 in Diameter, Green, Aluminum, Clamp-On Base

The 3M DBI-SALA Manhole Collar is a green, aluminum davit system base with a 21 1/2 in diameter, designed for clamp-on mounting to manhole openings. It is compatible with a Lower Mast Extension and serves as the…

SKU 3G-OTH-545721

Brand
3M DBI-SALA
Item
Manhole Collar, 21 1/2 in Diameter, Green, Aluminum, Clamp-On Base
Part Number
8510457
Category
Davit System Bases
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

3M DBI-SALA
Manufacturer Part Number
8510457
Type
21 1/2 in dia.: 21 1/2 in, Manhole Mnt, Lower Mast Extension, Green, Base
Material
Aluminum
Color
Green
Mounting Type
Clamp-On
Compatible Component
Lower Mast Extension
Confined Space Component
Base

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

3M DBI-SALA Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The 3M DBI-SALA Manhole Collar is a green, aluminum davit system base with a 21 1/2 in diameter, designed for clamp-on mounting to manhole openings. It is compatible with a Lower Mast Extension and serves as the confined space base component (MPN 8510457).

Frequently Asked Questions

What is the 3M DBI-SALA Manhole Collar used for?

The 3M DBI-SALA Manhole Collar (MPN 8510457) is a confined-space davit system base designed for clamp-on mounting to manhole openings. It supports a Lower Mast Extension to create a secure anchor point for fall-protection and rescue operations in utility vaults, sewers, and similar vertical-entry environments.

What are the specifications of the 3M DBI-SALA Manhole Collar?

This green aluminum base has a 21 1/2 in diameter and uses a clamp-on mounting type. It is compatible with a Lower Mast Extension and is classified as a confined-space base component. The manufacturer part number is 8510457, and the brand is 3M DBI-SALA.

Where to buy the 3M DBI-SALA Manhole Collar worldwide?

3G Electric supplies the 3M DBI-SALA Manhole Collar (8510457) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this confined-space davit system base.

How to install the 3M DBI-SALA Manhole Collar?

Installation requires clamp-on mounting to a manhole opening with a 21 1/2 in diameter. Ensure the collar is centered and securely tightened per the manufacturer's instructions. Always attach the Lower Mast Extension before use and follow confined-space entry safety protocols.

Used in

Common applications for 3M DBI-SALA
Construction — 3M DBI-SALA full-body harnesses for fall arrest on scaffolding and steel structures.
Oil and gas — 3M DBI-SALA harnesses for confined space rescue and work at height on rigs.
Utilities — 3M DBI-SALA harnesses for tower climbing and pole-top work with positioning D-rings.
Manufacturing — 3M DBI-SALA harnesses for overhead crane maintenance and elevated platform access.
Fire service — 3M DBI-SALA harnesses for technical rescue operations meeting NFPA 1983 standards.
Not sure this is the right part? Photo-identify it

3M DBI-SALA Products

3G Electric supplies 3M DBI-SALA davit system bases. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

More from 3M DBI-SALA

View all 3M DBI-SALA parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first