The MS29512-12 is an aerospace-standard rubber oil seal (radial shaft seal / packing seal) used in aircraft systems to prevent oil or fluid leakage around rotating or reciprocating shafts. It is designed to maintain a reliable sealing interface between moving components while retaining lubricants inside the system and excluding contaminants.

This type of seal is commonly used in aircraft engine accessories, gearboxes, hydraulic pumps, and other rotating assemblies where consistent lubrication retention is critical. The specified dimensions (0.116” cross-section × 0.924” diameter) define its precise fit for standardized aerospace housings.

Manufactured to MS specifications, it is typically made from fluoroelastomer (FKM/Viton-type) or equivalent high-performance rubber, offering resistance to aviation oils, hydraulic fluids, fuel exposure, and temperature variation.

Key features include:

MS29512-12 aerospace oil seal
Radial shaft / dynamic sealing application
Dimensions: 0.116” section × 0.924” ID/OD spec range
Prevents oil leakage in rotating systems
Keeps lubrication contained and contaminants out
FKM (Viton-type) elastomer construction
Resistant to aviation oils and hydraulic fluids
Used in engine, pump, and gearbox assemblies
Designed for vibration and rotational environments
Direct replacement per MS aircraft hardware standards