PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6640001054386Detector Pad,free Water

Astrodyne, Inc. · NSN 6640-00-105-4386 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-105-4386 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-105-4386. Primary manufacturer part number: 6640001054386.
Features
  • Detector Pad,free Water — FSC 6640
  • General Characteristics Item Description: C/O A BLOTTING PAPER DISC THAT HAS BEEN SURFACE COATED ON ONE SIDE W/URANINE; INDICATES PRESENCE OF AS LITTLE AS 3 PARTS PER MILLION OF FREE WATER IN LIQUIDS OF LOW SOLUBILITY
  • 7 verified cross-references
  • Primary manufacturer: Astrodyne, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Detector Pad,free Water, cataloged under National Stock Number 6640-00-105-4386, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Astrodyne, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-00-105-4386
Primary Part Number6640001054386
Item NameDetector Pad,free Water
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerAstrodyne, Inc.
StatusACTIVE
General Characteristics Item DescriptionC/O A BLOTTING PAPER DISC THAT HAS BEEN SURFACE COATED ON ONE SIDE W/URANINE; INDICATES PRESENCE OF AS LITTLE AS 3 PARTS PER MILLION OF FREE WATER IN LIQUIDS OF LOW SOLUBILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6665-00-235-3820 INTERCHANGEABLE
Detector Pad,free Water
Cross-Reference Index
Part NumberManufacturer
376 Driaire Inc (USA)
0500010 Gered Marketing Inc (USA)
MIL-D-81248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-81248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6640001054386 PRIMARY Astrodyne, Inc. (USA)
AQUA-TECTOOR Clariant Corp Div Clariant Corporation (USA)
8600 Clariant Corp Div Clariant Corporation (USA)
Related Parts
6665-00-235-3820INTERCHANGEABLE
DETECTOR PAD,FREE WATER

Frequently Asked Questions

What is NSN 6640-00-105-4386?

NSN 6640-00-105-4386 is a Detector Pad,free Water, manufactured by Astrodyne, Inc., classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-00-105-4386?

NSN 6640-00-105-4386 has 7 cross-referenced part numbers: 376 (Driaire Inc), 0500010 (Gered Marketing Inc), MIL-D-81248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-81248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6640001054386 (Astrodyne, Inc.) and 2 more.

What NSN replaces 6640-00-105-4386?

There is 1 known substitute for 6640-00-105-4386: 6665-00-235-3820. Verify interchangeability with system specifications before substitution.

What are the specifications of 6640001054386?

Key specifications for 6640001054386: General Characteristics Item Description: C/O A BLOTTING PAPER DISC THAT HAS BEEN SURFACE COATED ON ONE SIDE W/URANINE; INDICATES PRESENCE OF AS LITTLE AS 3 PARTS PER MILLION OF FREE WATER IN LIQUIDS OF LOW SOLUBILITY. 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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