PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3509-01Magnetic Inspection Unit,station

Brent America, Inc · NSN 6635-01-069-3670 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-069-3670 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-069-3670. Primary manufacturer part number: 3509-01.
Features
  • Magnetic Inspection Unit,station — FSC 6635
  • Functional Description: USED FOR RAPID DETECTION OF DISCONTINUITIES IN FERROMAGNETIC MATERIAL WHICH OTHERWISE COULD NOT BE SEEN BY THE INSPECTOR. LONGITUDINAL AND TRANSVERSE DISCONTINUITIES MAY BE FOUND,DEPENDING ON THE TYPE OF MAGNETIZATION INDUCED INTO THE PART.
  • Duty Cycle: 5.0 SECONDS ON AND 240.0 SECONDS OFF
  • Relationship to Similar Equipment: 6635-01-082-4064 AND 6635-01-074-7707
  • Functional Classification: AA-8.12
  • Reference Data and Literature: AF T.O. 33B2-21-1
  • Coil Opening Diameter: 54.000 INCHES NOMINAL IN
  • Current Rating in Amps: 5.0
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Magnetic Inspection Unit,station, cataloged under National Stock Number 6635-01-069-3670, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Brent America, Inc. Government technical data includes 14 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6635-01-069-3670
Primary Part Number3509-01
Item NameMagnetic Inspection Unit,station
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerBrent America, Inc
StatusACTIVE
Functional DescriptionUSED FOR RAPID DETECTION OF DISCONTINUITIES IN FERROMAGNETIC MATERIAL WHICH OTHERWISE COULD NOT BE SEEN BY THE INSPECTOR. LONGITUDINAL AND TRANSVERSE DISCONTINUITIES MAY BE FOUND,DEPENDING ON THE TYPE OF MAGNETIZATION INDUCED INTO THE PART.
Duty Cycle5.0 SECONDS ON AND 240.0 SECONDS OFF
Relationship to Similar Equipment6635-01-082-4064 AND 6635-01-074-7707
Functional ClassificationAA-8.12
Reference Data and LiteratureAF T.O. 33B2-21-1
Coil Opening Diameter54.000 INCHES NOMINAL IN
Current Rating in Amps5.0
Frequency in Hertz60.0
Maximum Demagnetizing Current Rating in Amps6000.0
Voltage in Volts105.0 AND 210.0
Current TypeAC
Entry Date80-11-01
Automatic Cycle TimerINCLUDED
PhaseTHREE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6635-00-348-0250 INTERCHANGEABLE
Magnetic Inspection Unit,station
6635-00-361-4631 INTERCHANGEABLE
Magnetic Inspection Unit,station
6635-00-557-5916ARQ966 INTERCHANGEABLE
Magnetic Inspection Unit,station
Illinois Tool Works, Inc. Div Magnaflux
6635-01-063-2304178148 INTERCHANGEABLE
Magnetic Inspection Unit,station
Illinois Tool Works, Inc. Div Magnaflux
6635-01-218-4884G6MP10SM INTERCHANGEABLE
Magnetic Inspection Unit,station
Q a Special Services Incorporated Dba Granier & Associates
6635-01-366-6791GB3509A-01 INTERCHANGEABLE
Magnetic Inspection Unit,station
Gould & Bass Company, Inc.
6620-01-507-2850350901 INTERCHANGEABLE
Indicator,pressure
Vdo North America Llc
6685-01-590-8055350-901 INTERCHANGEABLE
Gage,pressure,dial Indicating
Siemens Vdo Automotive
Cross-Reference Index
Part NumberManufacturer
A-A-58049-II Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3509-01 PRIMARY Brent America, Inc (USA)
MIL-M-6867 TYPE II SIZE 100 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6635-00-348-0250INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,STATION
6635-00-361-4631INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,STATION
6635-00-557-5916INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,STATION
ARQ966
6635-01-063-2304INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,STATION
178148
6635-01-218-4884INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,STATION
G6MP10SM
6635-01-366-6791INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,STATION
GB3509A-01
6620-01-507-2850INTERCHANGEABLE
INDICATOR,PRESSURE
350901
6685-01-590-8055INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
350-901

Frequently Asked Questions

What is NSN 6635-01-069-3670?

NSN 6635-01-069-3670 is a Magnetic Inspection Unit,station, manufactured by Brent America, Inc, classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-069-3670?

NSN 6635-01-069-3670 has 3 cross-referenced part numbers: A-A-58049-II (Federal Specifications Promulgated by General Services Administration Washington DC), 3509-01 (Brent America, Inc), MIL-M-6867 TYPE II SIZE 100 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6635-01-069-3670?

There are 8 known substitutes for 6635-01-069-3670: 6635-00-348-0250, 6635-00-361-4631, 6635-00-557-5916 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3509-01?

Key specifications for 3509-01: Functional Description: USED FOR RAPID DETECTION OF DISCONTINUITIES IN FERROMAGNETIC MATERIAL WHICH OTHERWISE COULD NOT BE SEEN BY THE INSPECTOR. LONGITUDINAL AND TRANSVERSE DISCONTINUITIES MAY BE FOUND,DEPENDING ON THE TYPE OF MAGNETIZATION INDUCED INTO THE PART.; Duty Cycle: 5.0 SECONDS ON AND 240.0 SECONDS OFF; Relationship to Similar Equipment: 6635-01-082-4064 AND 6635-01-074-7707; Functional Classification: AA-8.12. 15 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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