PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

231791Damping Fluid

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 9150-00-157-8121 · FSC 9150 · No Item Name Available
Verified by PartsTable
NSN 9150-00-157-8121 — this item is cataloged by the U.S. Government under National Stock Number 9150-00-157-8121. Primary manufacturer part number: 231791.
Features
  • Damping Fluid — FSC 9150
  • Quantity Within Each Unit Package: 1.000 PINTS
  • Viscosity at Rated Temp: 550.00 MINIMUM 130 DEG FAHRENHEIT AND 580.00 MAXIMUM 130 DEG FAHRENHEIT
  • Basic Ingredient: LUBRICATING OIL-POLYBUTENE
  • 4 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Damping Fluid, cataloged under National Stock Number 9150-00-157-8121, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9150-00-157-8121
Primary Part Number231791
Item NameDamping Fluid
FSC / FSG9150 / 91 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Quantity Within Each Unit Package1.000 PINTS
Viscosity at Rated Temp550.00 MINIMUM 130 DEG FAHRENHEIT AND 580.00 MAXIMUM 130 DEG FAHRENHEIT
Basic IngredientLUBRICATING OIL-POLYBUTENE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6105-00-797-4043183665 INTERCHANGEABLE
End Bell,electrical Rotating Equ
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
4520-01-669-5421231791 INTERCHANGEABLE
Pipe,exhaust
Sea-Bird Electronics, Inc Dba Sea-Bird Scientific
Cross-Reference Index
Part NumberManufacturer
231791 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
654377 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
591334PC1 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
417234PC3 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6105-00-797-4043INTERCHANGEABLE
END BELL,ELECTRICAL ROTATING EQU
183665
4520-01-669-5421INTERCHANGEABLE
PIPE,EXHAUST
231791

Frequently Asked Questions

What is NSN 9150-00-157-8121?

NSN 9150-00-157-8121 is a Damping Fluid, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 9150 (No Item Name Available). Status: active.

What are the part numbers for NSN 9150-00-157-8121?

NSN 9150-00-157-8121 has 4 cross-referenced part numbers: 231791 (Lockheed Martin Corporation Div Rms - Mitchel Field), 654377 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 591334PC1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 417234PC3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 9150-00-157-8121?

There are 2 known substitutes for 9150-00-157-8121: 6105-00-797-4043, 4520-01-669-5421. Verify interchangeability with system specifications before substitution.

What are the specifications of 231791?

Key specifications for 231791: Quantity Within Each Unit Package: 1.000 PINTS; Viscosity at Rated Temp: 550.00 MINIMUM 130 DEG FAHRENHEIT AND 580.00 MAXIMUM 130 DEG FAHRENHEIT; Basic Ingredient: LUBRICATING OIL-POLYBUTENE. 3 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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