PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H281Printer,engine Monitor

Howell Instruments, Inc. Dba Howell Instruments Inc · NSN 4920-01-140-3941 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-140-3941 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-140-3941. Primary manufacturer part number: H281.
Features
  • Printer,engine Monitor — FSC 4920
  • FSC Application Data: TEST SET,AIRCRAFT ENGINE
  • 1 verified cross-reference
  • Primary manufacturer: Howell Instruments, Inc. Dba Howell Instruments Inc
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Printer,engine Monitor, cataloged under National Stock Number 4920-01-140-3941, 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 Howell Instruments, Inc. Dba Howell Instruments Inc. Government technical data includes 1 verified specification, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-140-3941
Primary Part NumberH281
Item NamePrinter,engine Monitor
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerHowell Instruments, Inc. Dba Howell Instruments Inc
StatusACTIVE
FSC Application DataTEST SET,AIRCRAFT ENGINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5342-00-975-6276H28-1 INTERCHANGEABLE
Catch,roller
Ims Engineered Products Llc
5340-00-978-1773H28-1 INTERCHANGEABLE
Catch,clamping
Hartwell Corporation
5950-01-146-7763 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
H281 PRIMARY Howell Instruments, Inc. Dba Howell Instruments Inc (USA)
Related Parts
5342-00-975-6276INTERCHANGEABLE
CATCH,ROLLER
H28-1
5340-00-978-1773INTERCHANGEABLE
CATCH,CLAMPING
H28-1
5950-01-146-7763INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY

Frequently Asked Questions

What is NSN 4920-01-140-3941?

NSN 4920-01-140-3941 is a Printer,engine Monitor, manufactured by Howell Instruments, Inc. Dba Howell Instruments Inc, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-140-3941?

NSN 4920-01-140-3941 has 1 cross-referenced part number: H281 (Howell Instruments, Inc. Dba Howell Instruments Inc).

What NSN replaces 4920-01-140-3941?

There are 3 known substitutes for 4920-01-140-3941: 5342-00-975-6276, 5340-00-978-1773, 5950-01-146-7763. Verify interchangeability with system specifications before substitution.

What are the specifications of H281?

Key specifications for H281: FSC Application Data: TEST SET,AIRCRAFT ENGINE; End Item Identification: C-130 ACFT. 2 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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