MS28782-39

RETAINER
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About this product
The MS28782-39 is a precision-formed stainless-steel retainer ring engineered to hold bearings, shafts, and assemblies securely in grooves or housings. Its spring-steel resilience provides constant radial force to prevent axial movement under vibration and load, while its corrosion-resistant finish ensures dependable performance in both ground and flight environments. Supplied with trace paperwork, it supports certified maintenance workflows.
MS28782-39 Datasheet
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Lead Time: Stock
Certification: TRACE
PRODUCT DESCRIPTION

MS28782-39

  • Spring-Steel Alloy: Offers consistent retaining force and fatigue resistance through repeated cycles.

  • Corrosion-Resistant Finish: Passivated to withstand moisture, hydraulic fluids, and cleaning agents.

  • Precision Groove Fit: Machined to tight tolerances for a snug, vibration-proof installation.

  • Low-Profile Design: Minimal cross-section keeps assemblies compact and avoids interference.


  • Locks roller and ball bearings in actuator housings on flight-control systems.

  • Secures shafts within accessory-gearbox cases during engine-run tests.

  • Holds pins in scissor-link assemblies against retraction-extension loads.

  • Retains the shaft location in hydraulic and fuel pumps on maintenance rigs.


  • Can I install it without special tools?

Yes, standard snap-ring pliers or flat-nose pliers can safely compress and insert the ring into its groove.

  • How do I inspect for serviceability?

Check for evenly formed retaining edges, no surface pitting, and confirm it snaps back to its original shape after release.

  • How do I verify correct installation?

Visually confirm the ring sits fully in its groove with no gaps and test axial security by applying light end-play force.


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