PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SOUNDSAFE 12OZCouplant,ultrasonic Test

Sonotech Inc · NSN 6635-01-553-0559 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-553-0559 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-553-0559. Primary manufacturer part number: SOUNDSAFE 12OZ.
Features
  • Couplant,ultrasonic Test — FSC 6635
  • 2 verified cross-references
  • Primary manufacturer: Sonotech Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Couplant,ultrasonic Test, cataloged under National Stock Number 6635-01-553-0559, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Sonotech Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6635-01-553-0559
Primary Part NumberSOUNDSAFE 12OZ
Item NameCouplant,ultrasonic Test
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerSonotech Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-353-8708F600B00443 INTERCHANGEABLE
Gasket
Wisconsin Motors, Llc
4520-00-445-9934MC45 INTERCHANGEABLE
Heating Element,electrical,nonim
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
5315-00-911-195320912 INTERCHANGEABLE
Pin,shoulder,headless
Eaton Corporation Dba Eaton Inoac
5133-00-988-5699 INTERCHANGEABLE
Drill,twist
5120-01-053-263720912 INTERCHANGEABLE
Key Set,socket Head Screw
Eklind Tool Co
3895-01-068-1994 INTERCHANGEABLE
Flexible Jumper Assembly
4310-01-120-766920-912 INTERCHANGEABLE
Compressor Unit,reciprocating
C&h Distributors, Llc
4720-01-166-311420912 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5355-01-222-270220912 INTERCHANGEABLE
Knob
Jergens Inc Div Tooling Components Division
3040-01-383-2375 INTERCHANGEABLE
Housing,mechanical Drive
Cross-Reference Index
Part NumberManufacturer
SOUNDSAFE 12OZ PRIMARY Sonotech Inc (USA)
20-912 PRIMARY Sonotech Inc (USA)
Related Parts
5330-00-353-8708INTERCHANGEABLE
GASKET
F600B00443
4520-00-445-9934INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
MC45
5315-00-911-1953INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
20912
5133-00-988-5699INTERCHANGEABLE
DRILL,TWIST
5120-01-053-2637INTERCHANGEABLE
KEY SET,SOCKET HEAD SCREW
20912
3895-01-068-1994INTERCHANGEABLE
FLEXIBLE JUMPER ASSEMBLY
4310-01-120-7669INTERCHANGEABLE
COMPRESSOR UNIT,RECIPROCATING
20-912
4720-01-166-3114INTERCHANGEABLE
HOSE,PREFORMED
20912
5355-01-222-2702INTERCHANGEABLE
KNOB
20912
3040-01-383-2375INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
4720-01-631-5907INTERCHANGEABLE
HOSE,NONMETALLIC
20912

Frequently Asked Questions

What is NSN 6635-01-553-0559?

NSN 6635-01-553-0559 is a Couplant,ultrasonic Test, manufactured by Sonotech Inc, classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-553-0559?

NSN 6635-01-553-0559 has 2 cross-referenced part numbers: SOUNDSAFE 12OZ (Sonotech Inc), 20-912 (Sonotech Inc).

What NSN replaces 6635-01-553-0559?

There are 11 known substitutes for 6635-01-553-0559: 5330-00-353-8708, 4520-00-445-9934, 5315-00-911-1953 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SOUNDSAFE 12OZ?

Key specifications for SOUNDSAFE 12OZ: Special Features: ENVIRONMENTALLY BENING FORMULA; TEMPERATURE RANGE 0 TO 200 DEG. F; 12EA. X 12 OZ. CARTON OZ; Part Name Assigned by Controlling Agency: ULTRASONIC COUPLANT. 2 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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