PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PT1Transmitter,pressure

Fyr-Fyter Co Inc · NSN 6685-00-509-5239 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-509-5239 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-509-5239. Primary manufacturer part number: PT1.
Features
  • Transmitter,pressure — FSC 6685
  • 1 verified cross-reference
  • Primary manufacturer: Fyr-Fyter Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transmitter,pressure, cataloged under National Stock Number 6685-00-509-5239, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Fyr-Fyter Co Inc. 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
NSN6685-00-509-5239
Primary Part NumberPT1
Item NameTransmitter,pressure
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerFyr-Fyter Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-024-7211DWG5120-00-024-7211 INTERCHANGEABLE
Pick,body and Fender Repair
General Services Administration Federal Supply Service
4730-00-188-631781221S41-355PC35 INTERCHANGEABLE
Fitting,lubrication
Naval Sea Systems Command
5340-00-484-44421176 INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
5640-00-555-30112999015 INTERCHANGEABLE
Insulation Tape,thermal
Bergstrom Inc
9320-01-010-3240475291 INTERCHANGEABLE
Tape,adhesive,rubber
Parker-Hannifin Corp Div Sporlan Division
5820-01-095-4388PT-1/265.14MHZ INTERCHANGEABLE
Transmitter,radio
Donfred Inc Dba Transcience
5940-01-361-2082PT1 INTERCHANGEABLE
Splice,conductor
Abb Installation Products Inc
6520-01-502-5058PT1 INTERCHANGEABLE
Elevator,periosteal
Hu-Friedy Mfg. Co., Llc
5330-01-600-1629PT-1 INTERCHANGEABLE
Cork and Rubber Strip
Scott Fetzer Company, the Dba Adalet Div Adalet
5950-01-604-6804PT-1 INTERCHANGEABLE
Transformer,power
Us Tech Inc Dba Us Tech Inc
Cross-Reference Index
Part NumberManufacturer
PT1 Fyr-Fyter Co Inc (USA)
Related Parts
5120-00-024-7211INTERCHANGEABLE
PICK,BODY AND FENDER REPAIR
DWG5120-00-024-7211
4730-00-188-6317INTERCHANGEABLE
FITTING,LUBRICATION
81221S41-355PC35
5340-00-484-4442INTERCHANGEABLE
KEY BLANK
1176
5640-00-555-3011INTERCHANGEABLE
INSULATION TAPE,THERMAL
2999015
9320-01-010-3240INTERCHANGEABLE
TAPE,ADHESIVE,RUBBER
475291
5820-01-095-4388INTERCHANGEABLE
TRANSMITTER,RADIO
PT-1/265.14MHZ
5940-01-361-2082INTERCHANGEABLE
SPLICE,CONDUCTOR
PT1
6520-01-502-5058INTERCHANGEABLE
ELEVATOR,PERIOSTEAL
PT1
5330-01-600-1629INTERCHANGEABLE
CORK AND RUBBER STRIP
PT-1
5950-01-604-6804INTERCHANGEABLE
TRANSFORMER,POWER
PT-1
6650-01-619-5107INTERCHANGEABLE
HOLDER,OPTICAL ELEMENT
PT1
6625-01-659-7223INTERCHANGEABLE
METER,CONDUCTIVITY
PT1

Frequently Asked Questions

What is NSN 6685-00-509-5239?

NSN 6685-00-509-5239 is a Transmitter,pressure, manufactured by Fyr-Fyter Co Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-509-5239?

NSN 6685-00-509-5239 has 1 cross-referenced part number: PT1 (Fyr-Fyter Co Inc).

What NSN replaces 6685-00-509-5239?

There are 12 known substitutes for 6685-00-509-5239: 5120-00-024-7211, 4730-00-188-6317, 5340-00-484-4442 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PT1?

Key specifications for PT1: Special Features: USED TO MEASURE WATER PRESSURE IN2 1/2 INCH FIRE HOSES IN. 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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