PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104-921Signal Conditioner

Ametek Inc Schutte and Koerting Div · NSN 4920-01-278-5890 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-278-5890 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-278-5890. Primary manufacturer part number: 104-921.
Features
  • Signal Conditioner — FSC 4920
  • General Characteristics Item Description: WALL MOUNTED; POWER: 115 VAC,SINGLE PHASE,60 HZ; OUTPUT: 0.5 VDC SQUARE WAVE WITH A 30 PERCENT MAX DC COMPONENT; IMPEDANCE: 1500 OHMS; AMBIENT TEMP 32-130 DEG F VDC
  • Functional Description: USED FOR MEASURING TURBINE SPEED IN TURBINE FLOWMETERS,WITH AN EMPHASIS ON LOW SPEED OPERATION
  • 1 verified cross-reference
  • Primary manufacturer: Ametek Inc Schutte and Koerting Div
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Signal Conditioner, cataloged under National Stock Number 4920-01-278-5890, 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 Ametek Inc Schutte and Koerting Div. Government technical data includes 2 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-278-5890
Primary Part Number104-921
Item NameSignal Conditioner
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerAmetek Inc Schutte and Koerting Div
StatusACTIVE
General Characteristics Item DescriptionWALL MOUNTED; POWER: 115 VAC,SINGLE PHASE,60 HZ; OUTPUT: 0.5 VDC SQUARE WAVE WITH A 30 PERCENT MAX DC COMPONENT; IMPEDANCE: 1500 OHMS; AMBIENT TEMP 32-130 DEG F VDC
Functional DescriptionUSED FOR MEASURING TURBINE SPEED IN TURBINE FLOWMETERS,WITH AN EMPHASIS ON LOW SPEED OPERATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1680-00-065-223610492-1 INTERCHANGEABLE
Gear,arm Rest
B/e Aerospace Inc Dba Interturbine
3110-00-100-6184104921 INTERCHANGEABLE
Ball,bearing
Chrysler Realty Company Llc Dba Daimler Chrysler
5998-00-578-8582 INTERCHANGEABLE
Circuit Card Assembly
6685-01-014-804610492-1 INTERCHANGEABLE
Transducer,pressure
Sensor Systems, L.l.c. Dba Sensor Systems Llc
Cross-Reference Index
Part NumberManufacturer
104-921 PRIMARY Ametek Inc Schutte and Koerting Div (USA)
Related Parts
1680-00-065-2236INTERCHANGEABLE
GEAR,ARM REST
10492-1
3110-00-100-6184INTERCHANGEABLE
BALL,BEARING
104921
5998-00-578-8582INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6685-01-014-8046INTERCHANGEABLE
TRANSDUCER,PRESSURE
10492-1

Frequently Asked Questions

What is NSN 4920-01-278-5890?

NSN 4920-01-278-5890 is a Signal Conditioner, manufactured by Ametek Inc Schutte and Koerting Div, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-278-5890?

NSN 4920-01-278-5890 has 1 cross-referenced part number: 104-921 (Ametek Inc Schutte and Koerting Div).

What NSN replaces 4920-01-278-5890?

There are 4 known substitutes for 4920-01-278-5890: 1680-00-065-2236, 3110-00-100-6184, 5998-00-578-8582 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 104-921?

Key specifications for 104-921: General Characteristics Item Description: WALL MOUNTED; POWER: 115 VAC,SINGLE PHASE,60 HZ; OUTPUT: 0.5 VDC SQUARE WAVE WITH A 30 PERCENT MAX DC COMPONENT; IMPEDANCE: 1500 OHMS; AMBIENT TEMP 32-130 DEG F VDC; End Item Identification: F101-F110 COMMONSELL,B-1B ACFT; Functional Description: USED FOR MEASURING TURBINE SPEED IN TURBINE FLOWMETERS,WITH AN EMPHASIS ON LOW SPEED OPERATION. 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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