PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18400-8Servocylinder

Moog Inc · NSN 1650-00-148-8493 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-148-8493 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-148-8493. Primary manufacturer part number: 18400-8.
Features
  • Servocylinder — FSC 1650
  • Design Characteristics: DOUBLE ACTING TWIN CYLINDER
  • Port Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Port Thread Quantity Per Inch: 18
  • Compressed Length: 66.750 INCHES MINIMUM AND 81.750 INCHES MAXIMUM IN
  • Extended Length: 126.900 INCHES MINIMUM AND 155.100 INCHES MAXIMUM IN
  • Seat Angle in Deg: 60.0
  • Port Style: GASKET SEAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Servocylinder, cataloged under National Stock Number 1650-00-148-8493, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Moog Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN1650-00-148-8493
Primary Part Number18400-8
Item NameServocylinder
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerMoog Inc
StatusACTIVE
Design CharacteristicsDOUBLE ACTING TWIN CYLINDER
Port Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
Port Thread Quantity Per Inch18
Compressed Length66.750 INCHES MINIMUM AND 81.750 INCHES MAXIMUM IN
Extended Length126.900 INCHES MINIMUM AND 155.100 INCHES MAXIMUM IN
Seat Angle in Deg60.0
Port StyleGASKET SEAL
Port Thread Class3B
Port Thread Diameter0.562 INCHES NOMINAL IN
Piston Rod End SimilarityNOT IDENTICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-645-425310100-28 INTERCHANGEABLE
Coil,radio Frequency
Carbon/graphite Group Inc the
5945-00-681-9520A100279 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
128SCH101-15 Northrop Grumman Systems Corporation (USA)
128SCH101-15 Northrop Grumman Systems Corporation (USA)
18400-8 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
18400-8 E-Systems Inc Montek Div Fluid Controls Opns (USA)
18400-8 PRIMARY Moog Inc (USA)
Related Parts
5950-00-645-4253INTERCHANGEABLE
COIL,RADIO FREQUENCY
10100-28
5945-00-681-9520INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A100279

Frequently Asked Questions

What is NSN 1650-00-148-8493?

NSN 1650-00-148-8493 is a Servocylinder, manufactured by Moog Inc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-148-8493?

NSN 1650-00-148-8493 has 5 cross-referenced part numbers: 128SCH101-15 (Northrop Grumman Systems Corporation), 128SCH101-15 (Northrop Grumman Systems Corporation), 18400-8 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), 18400-8 (E-Systems Inc Montek Div Fluid Controls Opns), 18400-8 (Moog Inc).

What NSN replaces 1650-00-148-8493?

There are 2 known substitutes for 1650-00-148-8493: 5950-00-645-4253, 5945-00-681-9520. Verify interchangeability with system specifications before substitution.

What are the specifications of 18400-8?

Key specifications for 18400-8: Design Characteristics: DOUBLE ACTING TWIN CYLINDER; Port Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Port Thread Quantity Per Inch: 18; Compressed Length: 66.750 INCHES MINIMUM AND 81.750 INCHES MAXIMUM IN. 10 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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