PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10544Pen,direction Assembly

Belfort Instrument Company · NSN 6660-00-055-5420 · FSC 6660 · No Item Name Available
Verified by PartsTable
NSN 6660-00-055-5420 — this item is cataloged by the U.S. Government under National Stock Number 6660-00-055-5420. Primary manufacturer part number: 10544.
Features
  • Pen,direction Assembly — FSC 6660
  • General Characteristics Item Description: ONE EACH FSCM 82205 PART NO. 10635,10542,10540-3
  • 1 verified cross-reference
  • Primary manufacturer: Belfort Instrument Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pen,direction Assembly, cataloged under National Stock Number 6660-00-055-5420, is classified within Federal Supply Class 6660 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Belfort Instrument Company. 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6660-00-055-5420
Primary Part Number10544
Item NamePen,direction Assembly
FSC / FSG6660 / 66 — No Item Name Available
ManufacturerBelfort Instrument Company
StatusACTIVE
General Characteristics Item DescriptionONE EACH FSCM 82205 PART NO. 10635,10542,10540-3
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-041-342710-5-4-4 INTERCHANGEABLE
Terminal,feedthru
Concord Electronics, Inc.
5305-00-151-0095 INTERCHANGEABLE
Screw,machine
2915-00-428-4924 INTERCHANGEABLE
Housing Governor
5925-00-615-707130055-15 INTERCHANGEABLE
Circuit Breaker
Cole Hersee Company
5950-00-648-137410544 INTERCHANGEABLE
Transformer,radio Frequency
Viking Technologies, Ltd.
5930-00-740-0523 INTERCHANGEABLE
Switch,commutator
5360-00-786-397410544 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5130-01-028-714210517 INTERCHANGEABLE
Stripper,wire,electric
Assembly Technologies International Inc.
6110-01-550-7618 INTERCHANGEABLE
Control Trans Assy
Cross-Reference Index
Part NumberManufacturer
10544 PRIMARY Belfort Instrument Company (USA)
Related Parts
5940-00-041-3427INTERCHANGEABLE
TERMINAL,FEEDTHRU
10-5-4-4
5305-00-151-0095INTERCHANGEABLE
SCREW,MACHINE
2915-00-428-4924INTERCHANGEABLE
HOUSING GOVERNOR
5925-00-615-7071INTERCHANGEABLE
CIRCUIT BREAKER
30055-15
5950-00-648-1374INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
10544
5930-00-740-0523INTERCHANGEABLE
SWITCH,COMMUTATOR
5360-00-786-3974INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
10544
5130-01-028-7142INTERCHANGEABLE
STRIPPER,WIRE,ELECTRIC
10517
6110-01-550-7618INTERCHANGEABLE
CONTROL TRANS ASSY

Frequently Asked Questions

What is NSN 6660-00-055-5420?

NSN 6660-00-055-5420 is a Pen,direction Assembly, manufactured by Belfort Instrument Company, classified under FSC 6660 (No Item Name Available). Status: active.

What are the part numbers for NSN 6660-00-055-5420?

NSN 6660-00-055-5420 has 1 cross-referenced part number: 10544 (Belfort Instrument Company).

What NSN replaces 6660-00-055-5420?

There are 9 known substitutes for 6660-00-055-5420: 5940-00-041-3427, 5305-00-151-0095, 2915-00-428-4924 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10544?

Key specifications for 10544: General Characteristics Item Description: ONE EACH FSCM 82205 PART NO. 10635,10542,10540-3. 1 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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