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Royco 1MS Grease

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Overview

MIL-PRF-83483, anti-seize thread and severe duty heavy load compound

RoycoŽ 1MS anti-seize thread compound is a blend of lubrication grade, micro-fine powdered, molybdenum disulfide that conforms to SAE-AMS-M-7866, and technical grade petrolatum conforming to VV-P-236. RoycoŽ 1MS is non-abrasive, highly shear stable, and has a relatively low volatility compared to other thread compounds.

RoycoŽ 1MS is particularly suitable for use on aircraft engine spark plugs, threaded fasteners and fittings at temperatures below 427°C (800°F). At higher temperatures, RoycoŽ 44 conforming to SAE AMS-2518 should be used in lieu of RoycoŽ 1MS. Since this material is an electrical conductor, it is especially suited for anti-seize applications where the thread compound will not impede electrical flow.

RoycoŽ 1MS is a blend of lubrication grade microfine powdered molybdenum disulfide, particularly suitable for use on aircraft engine spark plugs and threaded fasteners and fittings at temperatures below 800°F. The advanced additives, inorganic gel thickeners provide superior performance for high load and sliding surfaces used under severe operating conditions in broad temperatures and/or corrosive environments. RoycoŽ 1MS compound is non-abrasive, highly shear stable and has relatively low volatility compared to some thread compounds. Since ROYCO 1MS material is an electrical conductor, it is especially suited for anti-seize applications where the thread compound will not impede the flow of an electrical current.

RoycoŽ 1MS meets the requirements of MIL-PRF-83483D.
   
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Features

  • Electrical Conductor
  • Low volatility

Specifications

  • Appearance: Paste
  • Physical state: Solid
  • Color: Black
  • Flash point: > 392 °F
  • Relative density: > 1.5

Benefits

  • Excellent shear stability
  • Offers anti-seize ability
  • Meets all requirements and is qualified to the current revision level of US MIL-SPEC: MIL-PRF- 83483
  • Meets the requirement of NATO: S-722

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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.