PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3AMagnetic Inspection Compound

Illinois Tool Works, Inc. Div Magnaflux · NSN 6850-00-255-0451 · FSC 6850 · No Item Name Available
Verified by PartsTable
NSN 6850-00-255-0451 — this item is cataloged by the U.S. Government under National Stock Number 6850-00-255-0451. Primary manufacturer part number: 3A.
Features
  • Magnetic Inspection Compound — FSC 6850
  • Water Soluble Feature: NOT PROVIDED
  • Fluorescent Feature: NOT INCLUDED
  • Physical Form: POWDER
  • Color: BLACK
  • Quantity Within Each Unit Package: 25.0 POUNDS LBS
  • 3 verified cross-references
  • Primary manufacturer: Illinois Tool Works, Inc. Div Magnaflux
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Magnetic Inspection Compound, cataloged under National Stock Number 6850-00-255-0451, is classified within Federal Supply Class 6850 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is Illinois Tool Works, Inc. Div Magnaflux. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6850-00-255-0451
Primary Part Number3A
Item NameMagnetic Inspection Compound
FSC / FSG6850 / 68 — No Item Name Available
ManufacturerIllinois Tool Works, Inc. Div Magnaflux
StatusACTIVE
Water Soluble FeatureNOT PROVIDED
Fluorescent FeatureNOT INCLUDED
Physical FormPOWDER
ColorBLACK
Quantity Within Each Unit Package25.0 POUNDS LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6850-00-255-0452 INTERCHANGEABLE
Magnetic Inspection Compound
6850-00-255-0453 INTERCHANGEABLE
Magnetic Inspection Compound
Cross-Reference Index
Part NumberManufacturer
3A Illinois Tool Works, Inc. Div Magnaflux (USA)
AMS 3040 Sae International Dba Sae International (USA)
AMS 3040 Society of Automotive Engineers Inc (USA)
Related Parts
6850-00-255-0452INTERCHANGEABLE
MAGNETIC INSPECTION COMPOUND
6850-00-255-0453INTERCHANGEABLE
MAGNETIC INSPECTION COMPOUND

Frequently Asked Questions

What is NSN 6850-00-255-0451?

NSN 6850-00-255-0451 is a Magnetic Inspection Compound, manufactured by Illinois Tool Works, Inc. Div Magnaflux, classified under FSC 6850 (No Item Name Available). Status: active.

What are the part numbers for NSN 6850-00-255-0451?

NSN 6850-00-255-0451 has 3 cross-referenced part numbers: 3A (Illinois Tool Works, Inc. Div Magnaflux), AMS 3040 (Sae International Dba Sae International), AMS 3040 (Society of Automotive Engineers Inc).

What NSN replaces 6850-00-255-0451?

There are 2 known substitutes for 6850-00-255-0451: 6850-00-255-0452, 6850-00-255-0453. Verify interchangeability with system specifications before substitution.

What are the specifications of 3A?

Key specifications for 3A: Water Soluble Feature: NOT PROVIDED; Special Features: DRY METHOD APPLICATION; Fluorescent Feature: NOT INCLUDED; Physical Form: POWDER. 6 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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