PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59440/4Cock,drain

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 4820-00-057-0694 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-057-0694 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-057-0694. Primary manufacturer part number: A-A-59440/4.
Features
  • Cock,drain — FSC 4820
  • Thread Series Designator: NPT FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Media for Which Designed: STEAM SINGLE RESPONSE
  • Valve Operation Method: MANUAL
  • Connection Style: PLAIN (PIPE) FIRST END
  • Flow Control Device: PLUG
  • Nominal Pipe Size Accommodated: 0.250 INCHES FIRST END IN
Applications
  • Applications requiring Copper Alloy and Copper Alloy 360 Body construction
General Description

The Cock,drain, cataloged under National Stock Number 4820-00-057-0694, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-057-0694
Primary Part NumberA-A-59440/4
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Thread Series DesignatorNPT FIRST END
Thread DirectionRIGHT-HAND FIRST END
Media for Which DesignedSTEAM SINGLE RESPONSE
Valve Operation MethodMANUAL
Connection StylePLAIN (PIPE) FIRST END
Flow Control DevicePLUG
Nominal Pipe Size Accommodated0.250 INCHES FIRST END IN
Nominal Thread Size0.250 INCHES FIRST END IN
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material Document and ClassificationQQ-C-390,ALLOY B5/D FED SPEC 1ST MATERIAL RESPONSE AND QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE AND QQ-B-626,ALLOY 360 FED SPEC 3RD MATERIAL RESPONSE BODY
MaterialCOPPER ALLOY AND COPPER ALLOY 360 BODY
Thread Quantity Per Inch18 FIRST END
Material Document and ClassificationQQ-C-390,ALLOY B5/D FED SPEC 1ST MATERIAL RESPONSE AND QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE AND QQ-B-626,ALLOY 360 FED SPEC 3RD MATERIAL RESPONSE FLOW CONTROL DEVICE
Style DesignatorSTRAIGHT THRU
MaterialCOPPER ALLOY AND COPPER ALLOY 360 FLOW CONTROL DEVICE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-026-8473009640 INTERCHANGEABLE
Cock,drain
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4820-00-197-4984 INTERCHANGEABLE
Cock,drain
4820-00-272-3332 INTERCHANGEABLE
Cock,drain
4820-00-272-3346 INTERCHANGEABLE
Cock,drain
4820-00-272-3353 INTERCHANGEABLE
Cock,plug
4820-00-275-2224 INTERCHANGEABLE
Cock,drain
4820-00-410-1925 INTERCHANGEABLE
Cock,drain
4820-00-639-9224 INTERCHANGEABLE
Cock,plug
4820-00-684-0880 INTERCHANGEABLE
Cock,drain
4820-00-720-4488 INTERCHANGEABLE
Cock,drain
Cross-Reference Index
Part NumberManufacturer
A-A-59440/4 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59440/4-019 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS35785-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A-A-59440 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
4820-00-026-8473INTERCHANGEABLE
COCK,DRAIN
009640
4820-00-197-4984INTERCHANGEABLE
COCK,DRAIN
4820-00-272-3332INTERCHANGEABLE
COCK,DRAIN
4820-00-272-3346INTERCHANGEABLE
COCK,DRAIN
4820-00-272-3353INTERCHANGEABLE
COCK,PLUG
4820-00-275-2224INTERCHANGEABLE
COCK,DRAIN
4820-00-410-1925INTERCHANGEABLE
COCK,DRAIN
4820-00-639-9224INTERCHANGEABLE
COCK,PLUG
4820-00-684-0880INTERCHANGEABLE
COCK,DRAIN
4820-00-720-4488INTERCHANGEABLE
COCK,DRAIN
4820-00-752-9040INTERCHANGEABLE
COCK,DRAIN
4820-00-845-1096INTERCHANGEABLE
COCK,DRAIN

Frequently Asked Questions

What is NSN 4820-00-057-0694?

NSN 4820-00-057-0694 is a Cock,drain, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-057-0694?

NSN 4820-00-057-0694 has 4 cross-referenced part numbers: A-A-59440/4 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59440/4-019 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MS35785-6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), A-A-59440 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 4820-00-057-0694?

There are 12 known substitutes for 4820-00-057-0694: 4820-00-026-8473, 4820-00-197-4984, 4820-00-272-3332 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59440/4?

Key specifications for A-A-59440/4: Thread Series Designator: NPT FIRST END; Thread Direction: RIGHT-HAND FIRST END; Media for Which Designed: STEAM SINGLE RESPONSE; Valve Operation Method: MANUAL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-057-0694 still in active supply?

NSN 4820-00-057-0694 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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