PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DC-53Cock,drain

Ernst Flow Industries Llc Div Ernst Flow Industries · NSN 4820-01-439-3853 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-439-3853 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-439-3853. Primary manufacturer part number: DC-53.
Features
  • Cock,drain — FSC 4820
  • Media for Which Designed: WATER, SALT SECOND RESPONSE
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Nominal Thread Size: 0.375 INCHES ALL ENDS IN
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Material: COPPER ALLOY BODY
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Style Designator: STRAIGHT THRU
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Cock,drain, cataloged under National Stock Number 4820-01-439-3853, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ernst Flow Industries Llc Div Ernst Flow Industries. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-439-3853
Primary Part NumberDC-53
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerErnst Flow Industries Llc Div Ernst Flow Industries
StatusACTIVE
Media for Which DesignedWATER, SALT SECOND RESPONSE
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Nominal Thread Size0.375 INCHES ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
MaterialCOPPER ALLOY BODY
Thread DirectionRIGHT-HAND ALL ENDS
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorNPT ALL ENDS
Media for Which DesignedWATER, FRESH FIRST RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-498-3375DC53 INTERCHANGEABLE
Meter,modulation
General Electric Company
4820-01-243-5841 INTERCHANGEABLE
Cock,shutoff,screw Stem
4820-01-437-8765 INTERCHANGEABLE
Cock,drain
Cross-Reference Index
Part NumberManufacturer
DC-53 Clark-Reliance Llc (USA)
DC-53 PRIMARY Ernst Flow Industries Llc Div Ernst Flow Industries (USA)
Related Parts
6625-00-498-3375INTERCHANGEABLE
METER,MODULATION
DC53
4820-01-243-5841INTERCHANGEABLE
COCK,SHUTOFF,SCREW STEM
4820-01-437-8765INTERCHANGEABLE
COCK,DRAIN

Frequently Asked Questions

What is NSN 4820-01-439-3853?

NSN 4820-01-439-3853 is a Cock,drain, manufactured by Ernst Flow Industries Llc Div Ernst Flow Industries, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-439-3853?

NSN 4820-01-439-3853 has 2 cross-referenced part numbers: DC-53 (Clark-Reliance Llc), DC-53 (Ernst Flow Industries Llc Div Ernst Flow Industries).

What NSN replaces 4820-01-439-3853?

There are 3 known substitutes for 4820-01-439-3853: 6625-00-498-3375, 4820-01-243-5841, 4820-01-437-8765. Verify interchangeability with system specifications before substitution.

What are the specifications of DC-53?

Key specifications for DC-53: Media for Which Designed: WATER, SALT SECOND RESPONSE; Part Name Assigned by Controlling Agency: DRAIN VALVE; Special Features: SPOKE WITH CAGE 16199, ERNST FLOW INDUSTRIES INC, 116 MAIN ST, FARMINGTON, NJ PHONE 732-938-5641,SUSAN MONTGOMERY WHOM CONFIRMED THEIR CAGE IS THE MANUFACTURER ON NOVEMBER 10 2015; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS. 12 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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