Rotor Clip SH-137SS Mps External Snap Retaining Ring

Product Description

The ROTOR CLIP SH-137SS MPS is an external snap retaining ring engineered for precision fastening on 1.375-inch diameter shafts. Made from 15-7 Grade 632 stainless steel and passivated to AMS-5529 and UNS S15700 standards, this ring delivers strong corrosion resistance and hardness rated at 44 to 51 HRC. It seats into a 1.291-inch groove diameter and holds a ring thickness of 0.050 inches. Licensed mechanics, millwrights, and maintenance technicians working in industrial, aerospace, or heavy-duty fluid-system assemblies will find this ring suited for applications that demand tight dimensional tolerances and material traceability.

This retaining ring is used in shaft assemblies requiring a secure external fastener that resists corrosion and retains its mechanical properties under demanding service conditions. The passivated stainless steel construction makes it appropriate for environments exposed to moisture, chemicals, or elevated temperatures. Typical install scenarios include pump shafts, motor assemblies, gearboxes, and instrumentation housings where precise groove engagement and reliable axial retention are critical. The ring meets military specification MS 16624-4137, making it suitable for defense and aerospace procurement.

Key Features

• 15-7 Grade 632 stainless steel with passivated finish for corrosion resistance
• Hardness of 44 to 51 HRC for reliable retention under load
• Groove diameter of 1.291 inches with tolerance of -0.004 to 0.004 inches
• Groove width of 0.056 inches for precise seating
• Meets AMS-5529, UNS S15700, MS 16624-4137, and ISO 13485:2015
• Ring thickness of 0.050 inches with tight tolerance of -0.002 to 0.002 inches

Compatibility

Designed for external installation on 1.375-inch diameter shafts with a corresponding groove diameter of 1.291 inches. Conforms to military specification MS 16624-4137.

Installation Notes

External snap rings of this type are installed using retaining ring pliers sized for external rings. Always power down and de-energize the assembly before disassembly or installation. Verify groove dimensions and ring thickness match shaft specifications prior to installation. Do not over-expand the ring beyond its free outside diameter during installation to avoid setting or distortion.