PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500-004Parts Kit,gage,pressure

Hydro-Test Products, Inc. Dba Hydro-Test Products Inc · NSN 6685-01-686-5544 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-686-5544 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-686-5544. Primary manufacturer part number: 500-004.
Features
  • Parts Kit,gage,pressure — FSC 6685
  • Component Document Origin: INDUSTRIAL
  • Document Type: COMMERCIAL CATALOG
  • Document Source: 56043
  • Component Quantity: 6
  • 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 Parts Kit,gage,pressure, cataloged under National Stock Number 6685-01-686-5544, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hydro-Test Products, Inc. Dba Hydro-Test Products Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-686-5544
Primary Part Number500-004
Item NameParts Kit,gage,pressure
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHydro-Test Products, Inc. Dba Hydro-Test Products Inc
StatusACTIVE
Component Document OriginINDUSTRIAL
Document TypeCOMMERCIAL CATALOG
Document Source56043
Component Quantity6
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-070-6404500004 INTERCHANGEABLE
Board Assy,componen
North Atlantic Industries, Inc. Dba North Atlantic Industries
6625-00-080-4276500-004 INTERCHANGEABLE
Ammeter
American Instrument Corp
5310-00-221-4695 INTERCHANGEABLE
Nut,plain,castellated,hexagon
2520-00-319-01484A86 INTERCHANGEABLE
Transmission,mechanical,vehicula
Bay City Shovels, Inc
5960-01-065-0273YU-152A INTERCHANGEABLE
Electron Tube
Communications & Power Industries Llc Dba Cpi Div Microwave Power Products Division - Eimac Operations
4140-01-278-54951978067-108 INTERCHANGEABLE
Fan,tubeaxial
Northrop Grumman Systems Corporation
5962-01-303-355650000-4 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5450-01-328-0170500666 INTERCHANGEABLE
Frame Beam
Clamshell Structures, Inc
6760-01-502-35428003010 INTERCHANGEABLE
Handle,camera
Scott Technologies, Inc.
6515-01-509-686650-0004 INTERCHANGEABLE
Sling,patient
North American Rescue, Llc
Cross-Reference Index
Part NumberManufacturer
500-004 PRIMARY Hydro-Test Products, Inc. Dba Hydro-Test Products Inc (USA)
Related Parts
6625-00-070-6404INTERCHANGEABLE
BOARD ASSY,COMPONEN
500004
6625-00-080-4276INTERCHANGEABLE
AMMETER
500-004
5310-00-221-4695INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
2520-00-319-0148INTERCHANGEABLE
TRANSMISSION,MECHANICAL,VEHICULA
4A86
5960-01-065-0273INTERCHANGEABLE
ELECTRON TUBE
YU-152A
4140-01-278-5495INTERCHANGEABLE
FAN,TUBEAXIAL
1978067-108
5962-01-303-3556INTERCHANGEABLE
MICROCIRCUIT,MEMORY
50000-4
5450-01-328-0170INTERCHANGEABLE
FRAME BEAM
500666
6760-01-502-3542INTERCHANGEABLE
HANDLE,CAMERA
8003010
6515-01-509-6866INTERCHANGEABLE
SLING,PATIENT
50-0004
2530-01-587-3893INTERCHANGEABLE
CAP,GREASE
500-004
4720-01-599-5553INTERCHANGEABLE
HOSE ASSEMBLY SET,NONMETALLIC
500004

Frequently Asked Questions

What is NSN 6685-01-686-5544?

NSN 6685-01-686-5544 is a Parts Kit,gage,pressure, manufactured by Hydro-Test Products, Inc. Dba Hydro-Test Products Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-686-5544?

NSN 6685-01-686-5544 has 1 cross-referenced part number: 500-004 (Hydro-Test Products, Inc. Dba Hydro-Test Products Inc).

What NSN replaces 6685-01-686-5544?

There are 12 known substitutes for 6685-01-686-5544: 6625-00-070-6404, 6625-00-080-4276, 5310-00-221-4695 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 500-004?

Key specifications for 500-004: Component Document Origin: INDUSTRIAL; Part Name Assigned by Controlling Agency: LOW PRESURE GUAGE KIT; Document Type: COMMERCIAL CATALOG; End Item Identification: WATER JACKET TEST SYSTEM. 6 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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