PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TTU228ETest Stand,hydraulic System Comp

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4920-00-880-5994 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-880-5994 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-880-5994. Primary manufacturer part number: TTU228E.
Features
  • Test Stand,hydraulic System Comp — FSC 4920
  • Power Source: GASOLINE ENGINE
  • Entry Date: 80-10-01
  • Functional Classification: AA-9.2
  • Installation Design: PORTABLE
  • Accumulator: INCLUDED
  • Nondefinitive Spec/std Data: TTU-2281E TYPE
  • Horsepower Rating: 175.0
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Test Stand,hydraulic System Comp, cataloged under National Stock Number 4920-00-880-5994, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-00-880-5994
Primary Part NumberTTU228E
Item NameTest Stand,hydraulic System Comp
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Power SourceGASOLINE ENGINE
Entry Date80-10-01
Functional ClassificationAA-9.2
Installation DesignPORTABLE
AccumulatorINCLUDED
Nondefinitive Spec/std DataTTU-2281E TYPE
Horsepower Rating175.0
Pressure Rating3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AND 5000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Engine Driven Hydraulic Pump Testing Design FeatureNOT INCLUDED
Pressure Manifold SubcircuitNOT INCLUDED
Functional DescriptionUSED TO TEST AIRCRAFT HYDRAULIC SYSTEM AND/OR COMPONENTS WITHOUT OPERATING AIRCRAFT ENGINE OR REMOVING COMPONENTS
Hydraulic Fluid Flow Rate10.0 GALLONS PER MINUTE
Filtering SystemINCLUDED
Departure From Cited DocumentBASIC ONLY
Pressure/suction HoseINCLUDED
Furnished Items and QuantityBUSHING UNITS 3,COUPLING HALVES 3,DUST PLUGS 3,REDUCERS 3,TUBE ASSY6,WRENCHES 6
Reference Data and LiteratureT.O. 33A2-2--1-146
Type/model DesignationMJ3
Usage DesignAIRCRAFT HYDRAULIC SYSTEM
Flow Capacity Rating20.0 GALLONS PER MINUTE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4920-00-034-8783 INTERCHANGEABLE
Test Stand,hydraulic System Comp
5895-00-052-6192 INTERCHANGEABLE
Resonator,tuning Fork
4920-00-400-5622C597-1000 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
4920-00-484-9113 INTERCHANGEABLE
Test Stand,hydraulic System Comp
4920-00-505-8937E2872 INTERCHANGEABLE
Test Stand,hydraulic System Comp
The Boeing Company Div Legacy Am&m
6340-00-565-3131 INTERCHANGEABLE
Control,alarm,airspeed
4920-00-600-1422E2872-11 INTERCHANGEABLE
Test Stand,hydraulic System Comp
The Boeing Company Div Legacy Am&m
4920-00-761-32341620-100 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4920-00-999-291581500 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4920-01-380-746026001 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Malabar
Cross-Reference Index
Part NumberManufacturer
TTU228E Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MJ3 Department of the Air Force (USA)
PD97-LDEE-08TYPEI San Antonio Air Logistics Center (USA)
HTS3/D Warner Robins Air Logistics Center (USA)
HTS3/D San Antonio Air Logistics Center (USA)
MILT38381 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILT38381BASIC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PD97-LDEE-08TYPEI Warner Robins Air Logistics Center (USA)
Related Parts
4920-00-034-8783INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
5895-00-052-6192INTERCHANGEABLE
RESONATOR,TUNING FORK
4920-00-400-5622INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
C597-1000
4920-00-484-9113INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
4920-00-505-8937INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
E2872
6340-00-565-3131INTERCHANGEABLE
CONTROL,ALARM,AIRSPEED
4920-00-600-1422INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
E2872-11
4920-00-761-3234INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
1620-100
4920-00-999-2915INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
81500
4920-01-380-7460INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
26001

Frequently Asked Questions

What is NSN 4920-00-880-5994?

NSN 4920-00-880-5994 is a Test Stand,hydraulic System Comp, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-880-5994?

NSN 4920-00-880-5994 has 8 cross-referenced part numbers: TTU228E (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MJ3 (Department of the Air Force), PD97-LDEE-08TYPEI (San Antonio Air Logistics Center), HTS3/D (Warner Robins Air Logistics Center), HTS3/D (San Antonio Air Logistics Center) and 3 more.

What NSN replaces 4920-00-880-5994?

There are 10 known substitutes for 4920-00-880-5994: 4920-00-034-8783, 5895-00-052-6192, 4920-00-400-5622 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TTU228E?

Key specifications for TTU228E: Power Source: GASOLINE ENGINE; Entry Date: 80-10-01; Functional Classification: AA-9.2; Installation Design: PORTABLE. 21 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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