PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

647-3Transmitter,pressure

Dwyer Instruments Inc · NSN 6685-01-721-1114 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-721-1114 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-721-1114. Primary manufacturer part number: 647-3.
Features
  • Transmitter,pressure — FSC 6685
  • 1 verified cross-reference
  • Primary manufacturer: Dwyer Instruments Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transmitter,pressure, cataloged under National Stock Number 6685-01-721-1114, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Dwyer Instruments Inc. This item has 1 commercial cross-reference 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
NSN6685-01-721-1114
Primary Part Number647-3
Item NameTransmitter,pressure
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerDwyer Instruments Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5910-00-113-36106473 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Knowles Cazenovia, Inc. Div Johanson Manufacturing
5999-00-122-647394096 INTERCHANGEABLE
Contact,electrical
L3 Technologies, Inc. Div L3harris Edo Western Corporation
5360-00-256-74696473 INTERCHANGEABLE
Spring,helical,compression
Unity Manufacturing Co
4820-00-287-2599 INTERCHANGEABLE
Valve,angle
5325-00-321-647964-73 INTERCHANGEABLE
Ring,retaining
Dresser Industries Inc Leroi Div
5310-00-373-74326473 INTERCHANGEABLE
Nut,plain,hexagon
Huck International, Inc. Div Kingston Operations
5365-00-482-68236473 INTERCHANGEABLE
Bushing,nonmetallic
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
3020-00-784-6767 INTERCHANGEABLE
Gear,helical
5962-01-021-5875 INTERCHANGEABLE
Microcircuit,digital
5945-01-299-3683D5RR2B INTERCHANGEABLE
Relay,electromagnetic
Eaton Corp Machinery Process Control Opns
Cross-Reference Index
Part NumberManufacturer
647-3 PRIMARY Dwyer Instruments Inc (USA)
Related Parts
5910-00-113-3610INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
6473
5999-00-122-6473INTERCHANGEABLE
CONTACT,ELECTRICAL
94096
5360-00-256-7469INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6473
4820-00-287-2599INTERCHANGEABLE
VALVE,ANGLE
5325-00-321-6479INTERCHANGEABLE
RING,RETAINING
64-73
5310-00-373-7432INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6473
5365-00-482-6823INTERCHANGEABLE
BUSHING,NONMETALLIC
6473
3020-00-784-6767INTERCHANGEABLE
GEAR,HELICAL
5962-01-021-5875INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5945-01-299-3683INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
D5RR2B
6760-01-371-7504INTERCHANGEABLE
LENS,PROJECTION
6473

Frequently Asked Questions

What is NSN 6685-01-721-1114?

NSN 6685-01-721-1114 is a Transmitter,pressure, manufactured by Dwyer Instruments Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-721-1114?

NSN 6685-01-721-1114 has 1 cross-referenced part number: 647-3 (Dwyer Instruments Inc).

What NSN replaces 6685-01-721-1114?

There are 11 known substitutes for 6685-01-721-1114: 5910-00-113-3610, 5999-00-122-6473, 5360-00-256-7469 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 647-3?

Key specifications for 647-3: Overall Length: 141.30 MILLIMETERS NOMINAL MM; Overall Width: 84.15 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: WET DIFFERENTIALPRESSURE TRANSMITTER; Special Features: HEIGHT IS 74.63 MILLIMETERS; WEIGHT IS 14 OUNCES; WETTED MATERIAL IS BRASS, VINYL, GLASS FILLED POLYESTER, SILICON, AND FLOROSILICONE; OZ. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com