PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

189-1Cock,drain

Dresser Industries Inc Leroi Div · NSN 4820-00-367-4867 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-367-4867 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-367-4867. Primary manufacturer part number: 189-1.
Features
  • Cock,drain — FSC 4820
  • Nominal Thread Size: 0.125 INCHES ALL ENDS IN
  • Valve Operation Method: MANUAL
  • Thread Series Designator: NPT ALL ENDS
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • 3 verified cross-references
  • Primary manufacturer: Dresser Industries Inc Leroi Div
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Cock,drain, cataloged under National Stock Number 4820-00-367-4867, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN4820-00-367-4867
Primary Part Number189-1
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Nominal Thread Size0.125 INCHES ALL ENDS IN
Valve Operation MethodMANUAL
Thread Series DesignatorNPT ALL ENDS
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-001-4183 INTERCHANGEABLE
Control,positioner
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
5360-00-455-71471891 INTERCHANGEABLE
Spring,helical,compression
Thompson Emery Machine & Supply Co
5340-00-486-2934 INTERCHANGEABLE
Clamp,loop
5331-00-515-55584036D28 INTERCHANGEABLE
O-Ring
Curtiss-Wright Controls, Inc. Div Actuation Division
5950-00-648-0777 INTERCHANGEABLE
Transformer,radio Frequency
6680-00-764-6312664-2 INTERCHANGEABLE
Indicator,liquid Quantity
Transicoil Llc Dba Ads Transicoil Div Transicoil
6240-00-770-33721891 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
3120-00-810-1506 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
189-1 PRIMARY Dresser Industries Inc Leroi Div (USA)
FE466A Ambac International Corporation Div Ambac International (USA)
6642 Ambac International Corporation Div Ambac International (USA)
Related Parts
6685-00-001-4183INTERCHANGEABLE
CONTROL,POSITIONER
5935-00-201-2338INTERCHANGEABLE
JACK,TIP
1891
5999-00-264-7968INTERCHANGEABLE
CAP,ELECTRICAL
591B1-1
5360-00-455-7147INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1891
5340-00-486-2934INTERCHANGEABLE
CLAMP,LOOP
5331-00-515-5558INTERCHANGEABLE
O-RING
4036D28
5950-00-648-0777INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6680-00-764-6312INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
664-2
6240-00-770-3372INTERCHANGEABLE
LAMP,INCANDESCENT
1891
3120-00-810-1506INTERCHANGEABLE
BEARING,SLEEVE
5935-00-814-5835INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
GC810A8B
5961-00-912-4907INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 4820-00-367-4867?

NSN 4820-00-367-4867 is a Cock,drain, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-367-4867?

NSN 4820-00-367-4867 has 3 cross-referenced part numbers: 189-1 (Dresser Industries Inc Leroi Div), FE466A (Ambac International Corporation Div Ambac International), 6642 (Ambac International Corporation Div Ambac International).

What NSN replaces 4820-00-367-4867?

There are 12 known substitutes for 4820-00-367-4867: 6685-00-001-4183, 5935-00-201-2338, 5999-00-264-7968 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 189-1?

Key specifications for 189-1: Nominal Thread Size: 0.125 INCHES ALL ENDS IN; Valve Operation Method: MANUAL; Thread Series Designator: NPT ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS. 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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