PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1891Control,positioner

General Regulator Corp. Dba Accudriv · NSN 6685-00-001-4183 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-001-4183 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-001-4183. Primary manufacturer part number: 1891.
Features
  • Control,positioner — FSC 6685
  • General Characteristics Item Description: ONE 1891-3 REDUCING CHAMBER,ONE 1891-10 SUPPLY CHAMBER,ONE 1891-20 STEM,ONE 1891-28 BLEED CHAMBER,ONE 1891-29 EXHAUST CHAMBER,ONE 1891-32 VALVE CHAMBER,ONE 1891-51 BLEED VALVE
  • 2 verified cross-references
  • Primary manufacturer: General Regulator Corp. Dba Accudriv
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Control,positioner, cataloged under National Stock Number 6685-00-001-4183, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is General Regulator Corp. Dba Accudriv. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN6685-00-001-4183
Primary Part Number1891
Item NameControl,positioner
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerGeneral Regulator Corp. Dba Accudriv
StatusACTIVE
General Characteristics Item DescriptionONE 1891-3 REDUCING CHAMBER,ONE 1891-10 SUPPLY CHAMBER,ONE 1891-20 STEM,ONE 1891-28 BLEED CHAMBER,ONE 1891-29 EXHAUST CHAMBER,ONE 1891-32 VALVE CHAMBER,ONE 1891-51 BLEED VALVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-201-23381891 INTERCHANGEABLE
Jack,tip
Entron Industries Limited Partnership Dba Entron Industries Property Div
5999-00-264-7968591B1-1 INTERCHANGEABLE
Cap,electrical
Cardwell Condenser Corp Lapointe-Admiral Div
5342-00-363-859530345 INTERCHANGEABLE
Ring,clamping
Arvinmeritor Inc
4820-00-367-4867189-1 INTERCHANGEABLE
Cock,drain
Dresser Industries Inc Leroi Div
1650-00-382-954930345 INTERCHANGEABLE
Plug,valve,linear
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5905-00-409-5583 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5360-00-455-71471891 INTERCHANGEABLE
Spring,helical,compression
Thompson Emery Machine & Supply Co
5331-00-515-55584036D28 INTERCHANGEABLE
O-Ring
Curtiss-Wright Controls, Inc. Div Actuation Division
5935-00-549-294730345 INTERCHANGEABLE
Connector,plug,electrical
Telephone Company of America Incorporated
5950-00-648-0777 INTERCHANGEABLE
Transformer,radio Frequency
Cross-Reference Index
Part NumberManufacturer
1891 General Regulator Corp. Dba Accudriv (USA)
30345 General Regulator Corp. Dba Accudriv (USA)
Related Parts
5935-00-201-2338INTERCHANGEABLE
JACK,TIP
1891
5999-00-264-7968INTERCHANGEABLE
CAP,ELECTRICAL
591B1-1
5342-00-363-8595INTERCHANGEABLE
RING,CLAMPING
30345
4820-00-367-4867INTERCHANGEABLE
COCK,DRAIN
189-1
1650-00-382-9549INTERCHANGEABLE
PLUG,VALVE,LINEAR
30345
5905-00-409-5583INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5360-00-455-7147INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1891
5331-00-515-5558INTERCHANGEABLE
O-RING
4036D28
5935-00-549-2947INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
30345
5950-00-648-0777INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6240-00-770-3372INTERCHANGEABLE
LAMP,INCANDESCENT
1891
5935-00-814-5835INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
GC810A8B

Frequently Asked Questions

What is NSN 6685-00-001-4183?

NSN 6685-00-001-4183 is a Control,positioner, manufactured by General Regulator Corp. Dba Accudriv, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-001-4183?

NSN 6685-00-001-4183 has 2 cross-referenced part numbers: 1891 (General Regulator Corp. Dba Accudriv), 30345 (General Regulator Corp. Dba Accudriv).

What NSN replaces 6685-00-001-4183?

There are 12 known substitutes for 6685-00-001-4183: 5935-00-201-2338, 5999-00-264-7968, 5342-00-363-8595 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1891?

Key specifications for 1891: General Characteristics Item Description: ONE 1891-3 REDUCING CHAMBER,ONE 1891-10 SUPPLY CHAMBER,ONE 1891-20 STEM,ONE 1891-28 BLEED CHAMBER,ONE 1891-29 EXHAUST CHAMBER,ONE 1891-32 VALVE CHAMBER,ONE 1891-51 BLEED VALVE. 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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