PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

53681Guide,crosshead

Hydro-Test Products, Inc. Dba Hydro-Test Products Inc · NSN 3655-01-206-4920 · FSC 3655 · No Item Name Available
Verified by PartsTable
NSN 3655-01-206-4920 — this item is cataloged by the U.S. Government under National Stock Number 3655-01-206-4920. Primary manufacturer part number: 53681.
Features
  • Guide,crosshead — FSC 3655
  • 1 verified cross-reference
  • Primary manufacturer: Hydro-Test Products, Inc. Dba Hydro-Test Products Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Guide,crosshead, cataloged under National Stock Number 3655-01-206-4920, is classified within Federal Supply Class 3655 (No Item Name Available) of the Special Industry Machinery group. The primary manufacturer of record is Hydro-Test Products, Inc. Dba Hydro-Test Products Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN3655-01-206-4920
Primary Part Number53681
Item NameGuide,crosshead
FSC / FSG3655 / 36 — No Item Name Available
ManufacturerHydro-Test Products, Inc. Dba Hydro-Test Products Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3655-00-065-6625 INTERCHANGEABLE
Guide,crosshead
5340-00-119-615453681 INTERCHANGEABLE
Seat,helical Compression Spring
Hamilton Sundstrand Corporation Dba Collins Aerospace
6685-00-628-9303 INTERCHANGEABLE
Thermometer,indicating,capillary
5940-00-836-2459 INTERCHANGEABLE
Terminal,lug
6150-01-505-378053681-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Naval Air Warfare Ctr Aircraft Div
Cross-Reference Index
Part NumberManufacturer
53681 PRIMARY Hydro-Test Products, Inc. Dba Hydro-Test Products Inc (USA)
Related Parts
3655-00-065-6625INTERCHANGEABLE
GUIDE,CROSSHEAD
5340-00-119-6154INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
53681
6685-00-628-9303INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
5940-00-836-2459INTERCHANGEABLE
TERMINAL,LUG
6150-01-505-3780INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
53681-1

Frequently Asked Questions

What is NSN 3655-01-206-4920?

NSN 3655-01-206-4920 is a Guide,crosshead, manufactured by Hydro-Test Products, Inc. Dba Hydro-Test Products Inc, classified under FSC 3655 (No Item Name Available). Status: active.

What are the part numbers for NSN 3655-01-206-4920?

NSN 3655-01-206-4920 has 1 cross-referenced part number: 53681 (Hydro-Test Products, Inc. Dba Hydro-Test Products Inc).

What NSN replaces 3655-01-206-4920?

There are 5 known substitutes for 3655-01-206-4920: 3655-00-065-6625, 5340-00-119-6154, 6685-00-628-9303 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 53681?

Key specifications for 53681: End Item Identification: 3655-00-288-0309. 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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