We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Crescent Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick - Crescent Rings
CRESCENTCrescent Rings

Crescent Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick

The Crescent Retaining Ring (MPN C-21ST ZD) is an external, standard steel crescent ring with a thickness of 0.025 in, supplied in a pack of 100. 3G Electric interprets customer demand and delivers genuine industrial…

SKU 3G-OTH-685493

Brand
CRESCENT
Item
Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick
Category
Crescent Rings
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

Technical Specifications

CRESCENT
Manufacturer Part Number
C-21ST ZD
Type
External, Std, Steel, 100 PK
Thk
0.025"
PK100
Inch
Thick
0.025 in
View Full Spec Sheet

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

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

Product Description

The Crescent Retaining Ring (MPN C-21ST ZD) is an external, standard steel crescent ring with a thickness of 0.025 in, supplied in a pack of 100. 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments—and far more—with specialist depth in combustion, pumps, and controls as an authorised distributor for brands including Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.

Frequently Asked Questions

What is a Crescent Retaining Ring used for?

A Crescent Retaining Ring is used to secure components on shafts or in housings, preventing axial movement. It is ideal for industrial applications requiring a compact, external retaining solution. 3G Electric supplies this genuine Crescent ring across 14 departments, with specialist depth in combustion, pumps, and controls.

What are the specifications of the Crescent Retaining Ring C-21ST ZD?

The Crescent Retaining Ring C-21ST ZD is an external, standard steel ring with a thickness of 0.025 in. It is supplied in a pack of 100 and is designed for inch-series applications. 3G Electric sources this genuine Crescent part for global delivery.

Where to buy Crescent Retaining Rings worldwide?

3G Electric supplies Crescent Retaining Rings worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we interpret demand and deliver genuine parts across 14 departments, including specialist expertise in combustion, pumps, and controls.

How to install a Crescent Retaining Ring?

To install a Crescent Retaining Ring, use retaining-ring pliers designed for external rings. Compress the ring evenly and slide it into the groove on the shaft. Ensure the ring seats fully. 3G Electric provides genuine Crescent rings for reliable performance in industrial applications.

Used in

Common applications for CRESCENT
General maintenance — CRESCENT adjustable wrenches (e.g., ATWJ212VS) for tightening and loosening nuts and bolts in industrial equipment.
Automotive repair — CRESCENT ratcheting box-end wrench sets (e.g., CX6DBS2) for fastening bolts in confined engine compartments.
Assembly line — CRESCENT adjustable wrench sets (e.g., CPTAW8) for quick adjustments on machinery with varying fastener sizes.
Mobile workstation organization — CRESCENT utility cart panels (e.g., IUC1DMPLCRM) for lockable storage of tools on RAILWORKS carts.
Plumbing and piping — CRESCENT adjustable wrenches (e.g., AT26VS) for gripping and turning pipe fittings in tight spaces.
Facility maintenance — CRESCENT ratcheting box-end wrench sets (e.g., CX6DBM2) for metric fasteners on HVAC and electrical panels.

CRESCENT Products

3G Electric supplies CRESCENT crescent rings. 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

More from CRESCENT

View all CRESCENT parts
Crescent Retaining Ring,0.042" Thk,PK50: Inch, External, Std, 0.042 in Thick, Steel, Ungraded, 50 PK (MPN C-75ST ZD)
CRESCENT
Crescent Retaining Ring,0.042" Thk,PK50: Inch, External, Std, 0.042 in Thick, Steel, Ungraded, 50 PK (MPN C-75ST ZD)
Crescent Retaining Ring,0.05" Thk,PK25: Inch, External, Std, 0.05 in Thick, Steel, Ungraded, 25 PK (MPN C-125ST ZD)
CRESCENT
Crescent Retaining Ring,0.05" Thk,PK25: Inch, External, Std, 0.05 in Thick, Steel, Ungraded, 25 PK (MPN C-125ST ZD)
Crescent Retaining Ring,0.042" Thk,PK50: Inch, External, Std, 0.042 in Thick, Steel, Ungraded, 50 PK (MPN C-100ST ZD)
CRESCENT
Crescent Retaining Ring,0.042" Thk,PK50: Inch, External, Std, 0.042 in Thick, Steel, Ungraded, 50 PK (MPN C-100ST ZD)
Crescent Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick, Steel, 100 PK (MPN C-43ST ZD)
CRESCENT
Crescent Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick, Steel, 100 PK (MPN C-43ST ZD)
Crescent Retaining Ring,0.035" Thk,PK100: Inch, External, Std, 0.035 in Thick, Steel, 100 PK (MPN C-50ST ZD)
CRESCENT
Crescent Retaining Ring,0.035" Thk,PK100: Inch, External, Std, 0.035 in Thick, Steel, 100 PK (MPN C-50ST ZD)
Crescent Retaining Ring,0.015" Thk,PK100: Inch, External, Std, 0.015 in Thick, Steel, 100 PK (MPN C-15ST ZD)
CRESCENT
Crescent Retaining Ring,0.015" Thk,PK100: Inch, External, Std, 0.015 in Thick, Steel, 100 PK (MPN C-15ST ZD)
Crescent Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick, Steel, 100 PK (MPN C-25ST ZD)
CRESCENT
Crescent Retaining Ring,0.025" Thk,PK100: Inch, External, Std, 0.025 in Thick, Steel, 100 PK (MPN C-25ST ZD)
Crescent Ring: Inch, External, Std, 0.035 in Thick, Fits 1/2 in Shaft Dia, Stainless Steel, 15 PK (MPN WWG-C050SS)
CRESCENT
Crescent Ring: Inch, External, Std, 0.035 in Thick, Fits 1/2 in Shaft Dia, Stainless Steel, 15 PK (MPN WWG-C050SS)