PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILL2105Lubricating Oil,gear

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 9150-00-056-9523 · FSC 9150 · No Item Name Available
Verified by PartsTable
NSN 9150-00-056-9523 — this item is cataloged by the U.S. Government under National Stock Number 9150-00-056-9523. Primary manufacturer part number: MILL2105.
Features
  • Lubricating Oil,gear — FSC 9150
  • Viscosity at Rated Temp: 25.70 MINIMUM 210 DEG FAHRENHEIT AND 34.30 MAXIMUM 210 DEG FAHRENHEIT
  • Nondefinitive Spec/std Data: 140 GRADE
  • Quantity Within Each Unit Package: 120.000 POUNDS LBS
  • Minimum Viscosity Index: 75.0
  • Lubricant Type: UNIVERSAL
  • Service Characteristics: ANTIFOAM AND CORROSION RESISTIVE
  • 1 verified cross-reference
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Lubricating Oil,gear, cataloged under National Stock Number 9150-00-056-9523, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9150-00-056-9523
Primary Part NumberMILL2105
Item NameLubricating Oil,gear
FSC / FSG9150 / 91 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Viscosity at Rated Temp25.70 MINIMUM 210 DEG FAHRENHEIT AND 34.30 MAXIMUM 210 DEG FAHRENHEIT
Nondefinitive Spec/std Data140 GRADE
Quantity Within Each Unit Package120.000 POUNDS LBS
Minimum Viscosity Index75.0
Lubricant TypeUNIVERSAL
Service CharacteristicsANTIFOAM AND CORROSION RESISTIVE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9150-00-001-9395 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5390 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5391 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5392 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5393 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5394 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5395 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-035-5396 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-048-4591 INTERCHANGEABLE
Lubricating Oil,gear
9150-01-048-4593 INTERCHANGEABLE
Lubricating Oil,gear
Cross-Reference Index
Part NumberManufacturer
MILL2105 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
9150-00-001-9395INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5390INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5391INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5392INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5393INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5394INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5395INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-035-5396INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-048-4591INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-048-4593INTERCHANGEABLE
LUBRICATING OIL,GEAR
9150-01-184-6866INTERCHANGEABLE
LUBRICATING OIL,GEAR
4251540-3
9150-01-292-8848INTERCHANGEABLE
LUBRICATING OIL,GEAR

Frequently Asked Questions

What is NSN 9150-00-056-9523?

NSN 9150-00-056-9523 is a Lubricating Oil,gear, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 9150 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9150-00-056-9523?

NSN 9150-00-056-9523 has 1 cross-referenced part number: MILL2105 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 9150-00-056-9523?

There are 12 known substitutes for 9150-00-056-9523: 9150-00-001-9395, 9150-01-035-5390, 9150-01-035-5391 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILL2105?

Key specifications for MILL2105: Viscosity at Rated Temp: 25.70 MINIMUM 210 DEG FAHRENHEIT AND 34.30 MAXIMUM 210 DEG FAHRENHEIT; Nondefinitive Spec/std Data: 140 GRADE; Quantity Within Each Unit Package: 120.000 POUNDS LBS; Minimum Viscosity Index: 75.0. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9150-00-056-9523 still in active supply?

NSN 9150-00-056-9523 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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