PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55MGrease,aircraft

Dow Silicones Corporation · NSN 9150-00-273-8633 · FSC 9150 · No Item Name Available
Verified by PartsTable
NSN 9150-00-273-8633 — this item is cataloged by the U.S. Government under National Stock Number 9150-00-273-8633. Primary manufacturer part number: 55M.
Features
  • Grease,aircraft — FSC 9150
  • Quantity Within Each Unit Package: 8.000 OUNCES, AVOIRDUPOIS OZ
  • Minimum Dropping Point: 325.0 FAHRENHEIT DEGF
  • Service Characteristics: CORROSION RESISTIVE AND LOW EVAPORATION AND OXIDATION RESISTANT
  • Basic Ingredient: GELLING AGENT
  • 11 verified cross-references
  • Primary manufacturer: Dow Silicones Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Grease,aircraft, cataloged under National Stock Number 9150-00-273-8633, is classified within Federal Supply Class 9150 (No Item Name Available) of the Fuels, Lubricants, Oils, and Waxes group. The primary manufacturer of record is Dow Silicones Corporation. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9150-00-273-8633
Primary Part Number55M
Item NameGrease,aircraft
FSC / FSG9150 / 91 — No Item Name Available
ManufacturerDow Silicones Corporation
StatusCANCELLED
Quantity Within Each Unit Package8.000 OUNCES, AVOIRDUPOIS OZ
Minimum Dropping Point325.0 FAHRENHEIT DEGF
Service CharacteristicsCORROSION RESISTIVE AND LOW EVAPORATION AND OXIDATION RESISTANT
Basic IngredientGELLING AGENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
9150-00-269-8255 INTERCHANGEABLE
Grease,aircraft
9150-01-066-1823MOLYKOTE 55M 5.3 OZ TUBE INTERCHANGEABLE
Grease,silicone Insulated Electr
Dow Silicones Corporation
5355-01-181-641513211E9392-1 INTERCHANGEABLE
Knob
Cecom Lr Center
9150-01-517-0256MIL-G-4543(MOLYKOTE 55M) INTERCHANGEABLE
Grease,aircraft
Dow Silicones Corporation
5340-01-651-7326 INTERCHANGEABLE
Bumper
Cross-Reference Index
Part NumberManufacturer
55M Dow Silicones Corporation (USA)
BRAYC0TE643-80ZTUBE Castrol Industrial North America Inc. (USA)
MOLYKOTE 55M 8 OZ TUBE Dow Silicones Corporation (USA)
58883-1 Raytheon Company Dba Raytheon (USA)
55M80ZTUBE Dow Silicones Corporation (USA)
DC 55 O-RING LUBRICANT Dow Silicones Corporation (USA)
MIL-G-4343C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
058883-1 Raytheon Company Dba Raytheon (USA)
DC55MGREASE80Z Freudenberg-Nok (CAN)
C0SM0LUBE615-80Z Houghton International Inc. (USA)
MOLYKOTE 55M Dow Silicones Corporation (USA)
Related Parts
9150-00-269-8255INTERCHANGEABLE
GREASE,AIRCRAFT
9150-01-066-1823INTERCHANGEABLE
GREASE,SILICONE INSULATED ELECTR
MOLYKOTE 55M 5.3 OZ TUBE
5355-01-181-6415INTERCHANGEABLE
KNOB
13211E9392-1
9150-01-517-0256INTERCHANGEABLE
GREASE,AIRCRAFT
MIL-G-4543(MOLYKOTE 55M)
5340-01-651-7326INTERCHANGEABLE
BUMPER

Frequently Asked Questions

What is NSN 9150-00-273-8633?

NSN 9150-00-273-8633 is a Grease,aircraft, manufactured by Dow Silicones Corporation, classified under FSC 9150 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9150-00-273-8633?

NSN 9150-00-273-8633 has 11 cross-referenced part numbers: 55M (Dow Silicones Corporation), BRAYC0TE643-80ZTUBE (Castrol Industrial North America Inc.), MOLYKOTE 55M 8 OZ TUBE (Dow Silicones Corporation), 58883-1 (Raytheon Company Dba Raytheon), 55M80ZTUBE (Dow Silicones Corporation) and 6 more.

What NSN replaces 9150-00-273-8633?

There are 5 known substitutes for 9150-00-273-8633: 9150-00-269-8255, 9150-01-066-1823, 5355-01-181-6415 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55M?

Key specifications for 55M: Quantity Within Each Unit Package: 8.000 OUNCES, AVOIRDUPOIS OZ; Minimum Dropping Point: 325.0 FAHRENHEIT DEGF; Service Characteristics: CORROSION RESISTIVE AND LOW EVAPORATION AND OXIDATION RESISTANT; Basic Ingredient: GELLING AGENT. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9150-00-273-8633 still in active supply?

NSN 9150-00-273-8633 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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