PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT1Transducer,ultrasonic Test

Ndt Systems, Inc. · NSN 6635-01-671-0415 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-671-0415 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-671-0415. Primary manufacturer part number: AT1.
Features
  • Transducer,ultrasonic Test — FSC 6635
  • 1 verified cross-reference
  • Primary manufacturer: Ndt Systems, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transducer,ultrasonic Test, cataloged under National Stock Number 6635-01-671-0415, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ndt Systems, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTransducer,ultrasonic Test
FSC / FSG6635 — No Item Name Available (FSG 66)
ManufacturersNdt Systems, Inc. (CAGE 1YQX1)
Technical Specifications
ParameterValue
NSN6635-01-671-0415
Primary Part NumberAT1
Item NameTransducer,ultrasonic Test
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerNdt Systems, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4940-00-262-3070 INTERCHANGEABLE
Undercutter,armature Mica,electr
3460-00-455-9051 INTERCHANGEABLE
Arbor,wheel,grinding-Buffing-Wir
5306-00-814-2513727414-1 INTERCHANGEABLE
Bolt,shoulder
Lockheed Martin Corp
4730-01-011-6361IT-1 INTERCHANGEABLE
Strainer,sediment
Spirax Sarco Inc Dba Spirax Sarco
4820-01-602-5324AT-1 INTERCHANGEABLE
Valve,pneumatic Inflator
Air Tight, Llc Dba Air Tight Llc
5120-01-676-6762AT1 INTERCHANGEABLE
Wrench,open End
Trompeter Electronics, Inc.
4730-01-718-3989AT1 INTERCHANGEABLE
Tee,pipe
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
AT1 PRIMARY Ndt Systems, Inc. (USA)
Related Parts
4940-00-262-3070INTERCHANGEABLE
UNDERCUTTER,ARMATURE MICA,ELECTR
3460-00-455-9051INTERCHANGEABLE
ARBOR,WHEEL,GRINDING-BUFFING-WIR
5306-00-814-2513INTERCHANGEABLE
BOLT,SHOULDER
727414-1
4730-01-011-6361INTERCHANGEABLE
STRAINER,SEDIMENT
IT-1
4820-01-602-5324INTERCHANGEABLE
VALVE,PNEUMATIC INFLATOR
AT-1
5120-01-676-6762INTERCHANGEABLE
WRENCH,OPEN END
AT1
4730-01-718-3989INTERCHANGEABLE
TEE,PIPE
AT1

Frequently Asked Questions

What is NSN 6635-01-671-0415?

NSN 6635-01-671-0415 is a Transducer,ultrasonic Test, manufactured by Ndt Systems, Inc., classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-671-0415?

NSN 6635-01-671-0415 has 1 cross-referenced part number: AT1 (Ndt Systems, Inc.).

What NSN replaces 6635-01-671-0415?

There are 7 known substitutes for 6635-01-671-0415: 4940-00-262-3070, 3460-00-455-9051, 5306-00-814-2513 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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