Rotor Clip HO-137ST Mcd Internal Snap Retaining Ring

Product Description

The ROTOR CLIP HO-137ST MCD is a heavy-duty internal snap retaining ring designed to secure components within a bore, preventing axial movement in precision assemblies. Manufactured from SAE 1060-1090 steel with a cadmium finish, this ring meets multiple military specifications and is built for demanding industrial and mechanical applications. The ring has a 1.375-inch bore diameter, a ring thickness of 1.27mm (0.05 inches), and a groove width of 1.42mm (0.056 inches). Licensed trades and maintenance professionals working on military-grade or industrial machinery specify this ring for its rated thrust load capacity and strict dimensional tolerances.

This internal snap ring is suited for use in gearboxes, hydraulic assemblies, pumps, and other precision mechanical systems where a reliable axial retention device is required inside a bored housing. The cadmium finish provides corrosion resistance in harsh environments. Its military specification compliance makes it a direct-fit option for defense, aerospace, and heavy industrial maintenance applications requiring documented standards conformance.

Key Features

• 1.375-inch bore diameter with a free outer diameter of 38.76mm
• Groove width of 1.42mm (0.056 inches) with a tolerance of 0.000 to 0.004 inches
• Ring thickness of 1.27mm (0.05 inches) with a tolerance of -0.002 to 0.002 inches
• Thrust load capacity: 5,050 lb (groove safety factor) and 9,846 lb (ring safety factor)
• Rockwell C hardness of 47-52 for consistent retention under load
• Cadmium finish for corrosion resistance in demanding service environments
• Compliant with ISO 13485:2016 and SAE 1060-1090 / UNS G10600-G10900 standards

Compatibility

Meets military specifications MS 16625-1025, MS 16625-1050, MS 16625-1062, MS 16625-1075, MS 16625-1087, MS 16625-1100, MS 16625-1125, MS 16625-1137, MS 16625-1150, MS 16625-1162, and MS 16625-1187. Designed as an OEM-style internal retaining ring replacement for bored housings requiring a 1.375-inch snap ring to military or industrial specification.

Installation Notes

Internal snap retaining rings are installed by licensed millwrights, maintenance mechanics, or trained technicians using snap ring pliers sized for internal applications. Ensure the bore groove dimensions are verified against ring specifications before installation. De-energize and lock out all mechanical and electrical systems before disassembly. Do not reuse a snap ring that has been removed, as repeated installation can affect dimensional tolerances and load capacity.