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SPEEDAIRE Disc Nut: Mfr Part # PN21AA645G - Air Tool Replacement Parts
SPEEDAIREAir Tool Replacement Parts

SPEEDAIRE Disc Nut: Mfr Part # PN21AA645G

The SPEEDAIRE Disc Nut (Mfr Part # PN21AA645G) is an air tool replacement part designed for compatibility with Part # 21AA91. This disc nut serves as a direct replacement component for specific pneumatic tools…

SKU 3G-OTH-167430

Brand
SPEEDAIRE
Item
Disc Nut: Mfr Part # PN21AA645G
Category
Air Tool Replacement Parts
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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

SPEEDAIRE
Manufacturer Part Number
PN21AA645G
Type
Disc Nut, Compatible with Part # 21AA91

Technical Documents

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SPEEDAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDAIRE Disc Nut (Mfr Part # PN21AA645G) is an air tool replacement part designed for compatibility with Part # 21AA91. This disc nut serves as a direct replacement component for specific pneumatic tools, identified by manufacturer part number PN21AA645G.

Frequently Asked Questions

What is the SPEEDAIRE Disc Nut used for?

The SPEEDAIRE Disc Nut is a replacement part for pneumatic tools. It secures abrasive discs or accessories on air-powered grinders and sanders, commonly used in metal fabrication, automotive repair, and general industrial maintenance.

What are the specifications of the SPEEDAIRE Disc Nut?

The SPEEDAIRE Disc Nut has manufacturer part number PN21AA645G and is compatible with Part # . It is classified as an air tool replacement part, specifically a disc nut for pneumatic tool applications.

Where to buy the SPEEDAIRE Disc Nut worldwide?

3G Electric supplies the SPEEDAIRE Disc Nut (PN21AA645G) worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the SPEEDAIRE Disc Nut on a pneumatic tool?

To install the SPEEDAIRE Disc Nut, first ensure the tool is disconnected from air supply. Place the disc on the spindle, then thread the disc nut onto the spindle and tighten securely with the appropriate wrench. Always follow the tool manufacturer's torque specifications.

Used in

Common applications for SPEEDAIRE
Manufacturing assembly lines — SPEEDAIRE compressed air filters (e.g., 4ZL49) for particulate removal in pneumatic tool supply
Air compressor maintenance — SPEEDAIRE Furnas to Condor P/S Kit (33MH82) for pressure switch conversion on reciprocating compressors
Pneumatic control systems — SPEEDAIRE check valves (810RC7) to prevent backflow in instrument air lines
Air tool repair — SPEEDAIRE internal gears (45P349) and O-rings (42VA60) for rebuilding impact wrenches and grinders
Heavy-duty industrial air preparation — SPEEDAIRE heavy-duty filters (4ZL12) with metal bowls for high-flow, high-pressure applications up to 250 psi
Air motor servicing — SPEEDAIRE repair kits (22XJ91) for maintaining pneumatic gearmotors in conveyor systems

SPEEDAIRE Products

3G Electric supplies SPEEDAIRE air tool replacement parts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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