NSN 6635-01-499-4331 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-499-4331. Manufacturer of record part number: HMT6-220.
Also searched as6635-01-499-4331 ·
6635014994331 ·
NIIN 014994331 ·
01-499-4331 ·
FSC 6635 Physical Properties Testing and Inspection · CAGE 0ETL4 · HMT6-220
FSC: 6635 — Physical Properties Testing and Inspection
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: HMT6-220
Manufacturer: Qualtech Inc
General Description
The Transducer,ultrasonic Test, cataloged under National Stock Number 6635-01-499-4331, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Qualtech Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6635-01-499-4331
Primary Part Number
HMT6-220
Item Name
Transducer,ultrasonic Test
FSC / FSG
6635 / 66 — Physical Properties Testing and Inspection
Other items in FSC 6635 — Physical Properties Testing and Inspection
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6635-00-000-0133
X-RAY APPARATUS,RADIOGRAPHIC,IND
6635-00-001-1523
FILM,RADIOGRAPHIC
6635-00-001-2317
6635-00-001-2317 · Item name not on file
6635-00-001-2318
6635-00-001-2318 · Item name not on file
6635-00-003-0281
TESTER,TORQUE WRENCH
6635-00-003-0282
CALIBRATOR,TORQUE
6635-00-003-0284
CALIBRATOR,TORQUE
6635-00-003-1193
6635-00-003-1193 · Item name not on file
Frequently Asked Questions
What is NSN 6635-01-499-4331?
NSN 6635-01-499-4331 is a Transducer,ultrasonic Test, manufactured by Qualtech Inc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
What part numbers are listed for NSN 6635-01-499-4331?
NSN 6635-01-499-4331 has 1 manufacturer part number on file: HMT6-220 (Qualtech Inc).
What are the specifications of HMT6-220?
Key specifications for HMT6-220: Overall Height: 0.700 INCHES NOMINAL IN; Overall Diameter: 0.430 INCHES NOMINAL IN; Special Features: FREQUENCY 5.0 MHZ; ELEMENT DIA - 0.250 INCHES; THREAD 7/16 X 28;TERMINAL LOCATION BOTTOM,TERMINAL TYPE SCREW STUD MHz; Material: STEEL CORROSION RESISTING CASE. 2 specifications are documented in the U.S. Government catalog.
Is NSN 6635-01-499-4331 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.