PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MOLYKOTE 55MGrease,aircraft

Dow Silicones Corporation · NSN 9150-01-517-0256 · FSC 9150 · No Item Name Available
Verified by PartsTable
NSN 9150-01-517-0256 — this item is cataloged by the U.S. Government under National Stock Number 9150-01-517-0256. Primary manufacturer part number: MOLYKOTE 55M.
Features
  • Grease,aircraft — FSC 9150
  • Effective Temp Range Rating: -85.0 TO 351.0 FAHRENHEIT DEGF
  • Minimum Flash Point and Test Method: 214.0 FAHRENHEIT PENSKY-MARTENS CLOSED CUP DEGF
  • Physical Form: PASTE
  • 2 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 9150-01-517-0256, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9150-01-517-0256
Primary Part NumberMOLYKOTE 55M
Item NameGrease,aircraft
FSC / FSG9150 / 91 — No Item Name Available
ManufacturerDow Silicones Corporation
StatusACTIVE
Effective Temp Range Rating-85.0 TO 351.0 FAHRENHEIT DEGF
Minimum Flash Point and Test Method214.0 FAHRENHEIT PENSKY-MARTENS CLOSED CUP DEGF
Physical FormPASTE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
9150-00-269-8255 INTERCHANGEABLE
Grease,aircraft
9150-00-273-8633 INTERCHANGEABLE
Grease,aircraft
9150-01-066-1823MOLYKOTE 55M 5.3 OZ TUBE INTERCHANGEABLE
Grease,silicone Insulated Electr
Dow Silicones Corporation
Cross-Reference Index
Part NumberManufacturer
MOLYKOTE 55M PRIMARY Dow Silicones Corporation (USA)
MIL-G-4543(MOLYKOTE 55M) PRIMARY Dow Silicones Corporation (USA)
Related Parts
9150-00-269-8255INTERCHANGEABLE
GREASE,AIRCRAFT
9150-00-273-8633INTERCHANGEABLE
GREASE,AIRCRAFT
9150-01-066-1823INTERCHANGEABLE
GREASE,SILICONE INSULATED ELECTR
MOLYKOTE 55M 5.3 OZ TUBE

Frequently Asked Questions

What is NSN 9150-01-517-0256?

NSN 9150-01-517-0256 is a Grease,aircraft, manufactured by Dow Silicones Corporation, classified under FSC 9150 (No Item Name Available). Status: active.

What are the part numbers for NSN 9150-01-517-0256?

NSN 9150-01-517-0256 has 2 cross-referenced part numbers: MOLYKOTE 55M (Dow Silicones Corporation), MIL-G-4543(MOLYKOTE 55M) (Dow Silicones Corporation).

What NSN replaces 9150-01-517-0256?

There are 3 known substitutes for 9150-01-517-0256: 9150-00-269-8255, 9150-00-273-8633, 9150-01-066-1823. Verify interchangeability with system specifications before substitution.

What are the specifications of MOLYKOTE 55M?

Key specifications for MOLYKOTE 55M: Effective Temp Range Rating: -85.0 TO 351.0 FAHRENHEIT DEGF; Minimum Flash Point and Test Method: 214.0 FAHRENHEIT PENSKY-MARTENS CLOSED CUP DEGF; Special Features: THE MATERIAL HAS TWO NAMES, MOLYKOTE 55M GREASE ANDDOW CORNING (R) 55 O RING LUBRICANT; IT IS A SILCONE GREASE; COLOR, PINK; ODOR, SLIGHT; COMES IN 4 SIZES, TUBES, CANS, PAILS, AND DRUMS; THIS NSN TO COME IN 8LB CAN LBS; Physical Form: PASTE. 4 total characteristics are documented in the Federal Logistics Information System.

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