PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

225511Reference Standard Set,physical

Illinois Tool Works, Inc. Div Magnaflux · NSN 6635-01-321-3320 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-321-3320 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-321-3320. Primary manufacturer part number: 225511.
Features
  • Reference Standard Set,physical — FSC 6635
  • 2 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 Reference Standard Set,physical, cataloged under National Stock Number 6635-01-321-3320, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Illinois Tool Works, Inc. Div Magnaflux. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6635-01-321-3320
Primary Part Number225511
Item NameReference Standard Set,physical
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerIllinois Tool Works, Inc. Div Magnaflux
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-198-1624A2526-31 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5935-00-280-2353 INTERCHANGEABLE
Clamp,cable,electrical Connector
4820-01-223-3686 INTERCHANGEABLE
Poppet,guide
5340-01-476-7899225511 INTERCHANGEABLE
Bracket,mounting
Kohler Co.
4810-01-572-7635225511 INTERCHANGEABLE
Valve,butterfly
Meggitt North Hollywood Inc
Cross-Reference Index
Part NumberManufacturer
225511 Illinois Tool Works, Inc. Div Magnaflux (USA)
225511 Centurion Non Destructive Testing Inc Dba Centurion Ndt (USA)
Related Parts
3110-00-198-1624INTERCHANGEABLE
BEARING,BALL,THRUST
A2526-31
5935-00-280-2353INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
4820-01-223-3686INTERCHANGEABLE
POPPET,GUIDE
5340-01-476-7899INTERCHANGEABLE
BRACKET,MOUNTING
225511
4810-01-572-7635INTERCHANGEABLE
VALVE,BUTTERFLY
225511

Frequently Asked Questions

What is NSN 6635-01-321-3320?

NSN 6635-01-321-3320 is a Reference Standard Set,physical, manufactured by Illinois Tool Works, Inc. Div Magnaflux, classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-321-3320?

NSN 6635-01-321-3320 has 2 cross-referenced part numbers: 225511 (Illinois Tool Works, Inc. Div Magnaflux), 225511 (Centurion Non Destructive Testing Inc Dba Centurion Ndt).

What NSN replaces 6635-01-321-3320?

There are 5 known substitutes for 6635-01-321-3320: 3110-00-198-1624, 5935-00-280-2353, 4820-01-223-3686 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 225511?

Key specifications for 225511: End Item Identification: SAMPLE CONDUCTOR MODEL FM-150. 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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