PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5-4000-1Decade Counting Unit

Atec Inc · NSN 6625-00-063-4699 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-063-4699 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-063-4699. Primary manufacturer part number: 5-4000-1.
Features
  • Decade Counting Unit — FSC 6625
  • General Characteristics Item Description: DESIGNED TO COUNT A SERIES OF INPUT PULSES TO THE BASE TEN,PROVIDING AN OUTPUT FOR EACH TEN INPUTS,SECONDARY CIRCUITS STORE UPON COMMAND THE INSTANTANEOUS COUNT,ANOTHER CIRCUIT WILL DECODE THE SIGNALS FROM STORAGE AND ENERGIZE THE APPROPRIATE NUMBER-SHAPED CATHODE OF A NEON-GLOW INDICATOR TUBE
  • General Characteristics Item Description: DESIGNED TO COUNT A SERIES OF INPUT PULSES TO THE BASE TEN,PROVIDING AN OUTPUT FOR EACH TEN INPUTS,SECONDARY CIRCUITS STORE UPON COMMAND THE INSTANTANEOUS COUNT,ANOTHER CIRCUIT WILL DECODE THE SIGNALS FROM STORAGE AND ENERGIZE THE APPROPRIATE NUMBER-SHAPED CATHODE OF A NEON-GLOW INDICATOR TUBE
  • 1 verified cross-reference
  • Primary manufacturer: Atec Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Decade Counting Unit, cataloged under National Stock Number 6625-00-063-4699, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Atec Inc. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-063-4699
Primary Part Number5-4000-1
Item NameDecade Counting Unit
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerAtec Inc
StatusACTIVE
General Characteristics Item DescriptionDESIGNED TO COUNT A SERIES OF INPUT PULSES TO THE BASE TEN,PROVIDING AN OUTPUT FOR EACH TEN INPUTS,SECONDARY CIRCUITS STORE UPON COMMAND THE INSTANTANEOUS COUNT,ANOTHER CIRCUIT WILL DECODE THE SIGNALS FROM STORAGE AND ENERGIZE THE APPROPRIATE NUMBER-SHAPED CATHODE OF A NEON-GLOW INDICATOR TUBE
General Characteristics Item DescriptionDESIGNED TO COUNT A SERIES OF INPUT PULSES TO THE BASE TEN,PROVIDING AN OUTPUT FOR EACH TEN INPUTS,SECONDARY CIRCUITS STORE UPON COMMAND THE INSTANTANEOUS COUNT,ANOTHER CIRCUIT WILL DECODE THE SIGNALS FROM STORAGE AND ENERGIZE THE APPROPRIATE NUMBER-SHAPED CATHODE OF A NEON-GLOW INDICATOR TUBE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5905-00-763-88055-40001 INTERCHANGEABLE
Resistor,fixed,composition
Ametek Programmable Power, Inc.
6530-01-448-8758540-001 INTERCHANGEABLE
Stretcher,hydraulic
Midmark Corporation Dba Midmark Corp
8120-01-641-4111540-001 INTERCHANGEABLE
Base,compressed Gas Cylinder
Hydro-Test Products, Inc. Dba Hydro-Test Products Inc
Cross-Reference Index
Part NumberManufacturer
5-4000-1 PRIMARY Atec Inc (USA)
Related Parts
5905-00-763-8805INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5-40001
6530-01-448-8758INTERCHANGEABLE
STRETCHER,HYDRAULIC
540-001
8120-01-641-4111INTERCHANGEABLE
BASE,COMPRESSED GAS CYLINDER
540-001

Frequently Asked Questions

What is NSN 6625-00-063-4699?

NSN 6625-00-063-4699 is a Decade Counting Unit, manufactured by Atec Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-063-4699?

NSN 6625-00-063-4699 has 1 cross-referenced part number: 5-4000-1 (Atec Inc).

What NSN replaces 6625-00-063-4699?

There are 3 known substitutes for 6625-00-063-4699: 5905-00-763-8805, 6530-01-448-8758, 8120-01-641-4111. Verify interchangeability with system specifications before substitution.

What are the specifications of 5-4000-1?

Key specifications for 5-4000-1: General Characteristics Item Description: DESIGNED TO COUNT A SERIES OF INPUT PULSES TO THE BASE TEN,PROVIDING AN OUTPUT FOR EACH TEN INPUTS,SECONDARY CIRCUITS STORE UPON COMMAND THE INSTANTANEOUS COUNT,ANOTHER CIRCUIT WILL DECODE THE SIGNALS FROM STORAGE AND ENERGIZE THE APPROPRIATE NUMBER-SHAPED CATHODE OF A NEON-GLOW INDICATOR TUBE; End Item Identification: 66258333704; General Characteristics Item Description: DESIGNED TO COUNT A SERIES OF INPUT PULSES TO THE BASE TEN,PROVIDING AN OUTPUT FOR EACH TEN INPUTS,SECONDARY CIRCUITS STORE UPON COMMAND THE INSTANTANEOUS COUNT,ANOTHER CIRCUIT WILL DECODE THE SIGNALS FROM STORAGE AND ENERGIZE THE APPROPRIATE NUMBER-SHAPED CATHODE OF A NEON-GLOW INDICATOR TUBE; End Item Identification: 66258333704. 4 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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