PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HS-877Transducer,supersonic Test

Staveley Sensors Inc. · NSN 6635-01-303-4517 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-303-4517 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-303-4517. Primary manufacturer part number: HS-877.
Features
  • Transducer,supersonic Test — FSC 6635
  • 6 verified cross-references
  • Primary manufacturer: Staveley Sensors Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transducer,supersonic Test, cataloged under National Stock Number 6635-01-303-4517, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Staveley Sensors Inc.. This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTransducer,supersonic Test
FSC / FSG6635 — No Item Name Available (FSG 66)
ManufacturersStaveley Sensors Inc. (CAGE 59334); Ndt Engineering Corporation (CAGE 61100); Technisonic Research, Inc (CAGE 43735); Olympus America Inc (CAGE 1KY21); Panametrics Llc (CAGE 27970)
Technical Specifications
ParameterValue
NSN6635-01-303-4517
Primary Part NumberHS-877
Item NameTransducer,supersonic Test
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerStaveley Sensors Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4330-01-335-6377A5-015 INTERCHANGEABLE
Filter,fluid
Del Mar Avionics, Llc
6635-01-642-0124U8438002 INTERCHANGEABLE
Transducer,ultrasonic Test
Olympus America Inc
Cross-Reference Index
Part NumberManufacturer
HS-877 Staveley Sensors Inc. (USA)
SX-545ST Ndt Engineering Corporation (USA)
MMAB-0501-45 Technisonic Research, Inc (USA)
SX-545ST Olympus America Inc (USA)
A5015 Panametrics Llc (USA)
HS-877 Olympus America Inc (USA)
Related Parts
4330-01-335-6377INTERCHANGEABLE
FILTER,FLUID
A5-015
6635-01-642-0124INTERCHANGEABLE
TRANSDUCER,ULTRASONIC TEST
U8438002

Frequently Asked Questions

What is NSN 6635-01-303-4517?

NSN 6635-01-303-4517 is a Transducer,supersonic Test, manufactured by Staveley Sensors Inc., classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-303-4517?

NSN 6635-01-303-4517 has 6 cross-referenced part numbers: HS-877 (Staveley Sensors Inc.), SX-545ST (Ndt Engineering Corporation), MMAB-0501-45 (Technisonic Research, Inc), SX-545ST (Olympus America Inc), A5015 (Panametrics Llc) and 1 more.

What NSN replaces 6635-01-303-4517?

There are 2 known substitutes for 6635-01-303-4517: 4330-01-335-6377, 6635-01-642-0124. Verify interchangeability with system specifications before substitution.

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