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

SPEEDAIRE Disc Nut: Mfr Part # PN21AA645G, Disc Nut

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

SKU 3G-OTH-167430

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

SPEEDAIRE
Manufacturer Part Number
PN21AA645G
Type
Disc Nut, Compatible with Grainger Part # 21AA91
View Full Spec Sheet

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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 Grainger Part # 21AA91. This disc nut serves as a direct replacement component for specific pneumatic tools, identified by manufacturer part number PN21AA645G.

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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SPEEDAIRE Collet Nut: Mfr Part # PN21AA433G, Collet Nut. Key specifications — attr948908: PN21AA433G; attr948910: 21AA85; attr948916: Collet Nut.
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SPEEDAIRE Collet Nut: Mfr Part # PN21AA433G, Collet Nut. Key specifications — attr948908: PN21AA433G; attr948910: 21AA85; attr948916: Collet Nut.
SPEEDAIRE Retainer: Mfr Part # PN21AA636G, Retainer, Compatible with Grainger Part # 21AC17. Key specifications — attr948908: PN21AA636G; attr948910: 21AC17; attr948916: Retainer.
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SPEEDAIRE Retainer: Mfr Part # PN21AA636G, Retainer, Compatible with Grainger Part # 21AC17. Key specifications — attr948908: PN21AA636G; attr948910: 21AC17; attr948916: Retainer.
SPEEDAIRE Collet, 1/8": Mfr Part # PN21AA646G, Collet, Compatible with Grainger Part # 21AA93. Key specifications — attr948908: PN21AA646G; attr948910: 21AA93; attr948916: Collet.
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SPEEDAIRE Collet, 1/8": Mfr Part # PN21AA646G, Collet, Compatible with Grainger Part # 21AA93. Key specifications — attr948908: PN21AA646G; attr948910: 21AA93; attr948916: Collet.
SPEEDAIRE Nut: Mfr Part # TTR8212406G, Nut, Compatible with Grainger Part # 3CRH3. Key specifications — attr948908: TTR8212406G; attr948910: 3CRH3; attr948916: Nut.
SPEEDAIRE
SPEEDAIRE Nut: Mfr Part # TTR8212406G, Nut, Compatible with Grainger Part # 3CRH3. Key specifications — attr948908: TTR8212406G; attr948910: 3CRH3; attr948916: Nut.
SPEEDAIRE Gasket: Mfr Part # PN21AA144G, Gasket. Key specifications — attr948908: PN21AA144G; attr948910: 21AA55; attr948916: Gasket.
SPEEDAIRE
SPEEDAIRE Gasket: Mfr Part # PN21AA144G, Gasket. Key specifications — attr948908: PN21AA144G; attr948910: 21AA55; attr948916: Gasket.
SPEEDAIRE Piston, 2": Mfr Part # PN21AA637G, Piston, Compatible with Grainger Part # 21AC17. Key specifications — attr948908: PN21AA637G; attr948910: 21AC17; attr948916: Piston.
SPEEDAIRE
SPEEDAIRE Piston, 2": Mfr Part # PN21AA637G, Piston, Compatible with Grainger Part # 21AC17. Key specifications — attr948908: PN21AA637G; attr948910: 21AC17; attr948916: Piston.

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SPEEDAIRE Rotor Blade: Mfr Part # PN21AA571G, Rotor Blade, 4 PK. Key specifications — attr948908: PN21AA571G; attr948910: 21AC05; attr948916: Rotor Blade.
SPEEDAIRE
SPEEDAIRE Rotor Blade: Mfr Part # PN21AA571G, Rotor Blade, 4 PK. Key specifications — attr948908: PN21AA571G; attr948910: 21AC05; attr948916: Rotor Blade.
SPEEDAIRE Back Up Ring: Mfr Part # TTR8212519G, Back-Up Ring, Compatible with Grainger Part # 3CRH5. Key specifications — attr948908: TTR8212519G; attr948910: 3CRH5; attr948916: Back-Up Ring.
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SPEEDAIRE Back Up Ring: Mfr Part # TTR8212519G, Back-Up Ring, Compatible with Grainger Part # 3CRH5. Key specifications — attr948908: TTR8212519G; attr948910: 3CRH5; attr948916: Back-Up Ring.
SPEEDAIRE Mandrel Bottle Adapter: Mfr Part # 42VA54, Mandrel Bottle Adapter. Key specifications — attr948908: 42VA54; attr948910: 3CRH6B; attr948911: SG-0450R; attr948916: Mandrel Bottle Adapter.
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SPEEDAIRE Mandrel Bottle Adapter: Mfr Part # 42VA54, Mandrel Bottle Adapter. Key specifications — attr948908: 42VA54; attr948910: 3CRH6B; attr948911: SG-0450R; attr948916: Mandrel Bottle Adapter.
SPEEDAIRE Air Inlet Bushing: Mfr Part # TT94944G, Compatible with Grainger Part # 3CRG2. Key specifications — attr948908: TT94944G; attr948910: 3CRG2.
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SPEEDAIRE Air Inlet Bushing: Mfr Part # TT94944G, Compatible with Grainger Part # 3CRG2. Key specifications — attr948908: TT94944G; attr948910: 3CRG2.
SPEEDAIRE Frame Assembly: Mfr Part # Z926-7050, Frame Assembly. Key specifications — attr948908: Z926-7050; attr948910: 440G03; attr948911: GGWA-PPO-277; attr948916: Frame Assembly.
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SPEEDAIRE Frame Assembly: Mfr Part # Z926-7050, Frame Assembly. Key specifications — attr948908: Z926-7050; attr948910: 440G03; attr948911: GGWA-PPO-277; attr948916: Frame Assembly.
SPEEDAIRE Nosepiece, 3/32": Mfr Part # 42VA70, Nose Piece, Compatible with Grainger Part # 45RM38. Key specifications — attr948908: 42VA70; attr948910: 45RM38; attr948911: SG-0190A; attr948916: Nose Piece.
SPEEDAIRE
SPEEDAIRE Nosepiece, 3/32": Mfr Part # 42VA70, Nose Piece, Compatible with Grainger Part # 45RM38. Key specifications — attr948908: 42VA70; attr948910: 45RM38; attr948911: SG-0190A; attr948916: Nose Piece.
SPEEDAIRE Bushing, 3/8 NPT: Mfr Part # TTM400007G, Compatible with Grainger Part # 3CRH1. Key specifications — attr948908: TTM400007G; attr948910: 3CRH1.
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SPEEDAIRE Bushing, 3/8 NPT: Mfr Part # TTM400007G, Compatible with Grainger Part # 3CRH1. Key specifications — attr948908: TTM400007G; attr948910: 3CRH1.
SPEEDAIRE Air Regulator: Mfr Part # TT16525G, Compatible with Grainger Part # 2YRG2. Key specifications — attr948908: TT16525G; attr948910: 2YRG2.
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SPEEDAIRE Air Regulator: Mfr Part # TT16525G, Compatible with Grainger Part # 2YRG2. Key specifications — attr948908: TT16525G; attr948910: 2YRG2.