PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

512012Cock,drain

U. S. Dynamics Corporation · NSN 4820-01-321-8114 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-321-8114 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-321-8114. Primary manufacturer part number: 512012.
Features
  • Cock,drain — FSC 4820
  • Material: COPPER ALLOY BODY
  • Furnished Items and Quantity: 1 HANDLE
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Valve Operation Method: MANUAL
  • Thread Series Designator: NPT ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Cock,drain, cataloged under National Stock Number 4820-01-321-8114, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is U. S. Dynamics Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-321-8114
Primary Part Number512012
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerU. S. Dynamics Corporation
StatusACTIVE
MaterialCOPPER ALLOY BODY
Furnished Items and Quantity1 HANDLE
Thread DirectionRIGHT-HAND ALL ENDS
Valve Operation MethodMANUAL
Thread Series DesignatorNPT ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Nominal Thread Size0.125 INCHES ALL ENDS IN
Flow Control DevicePOPPET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6695-00-380-0171LD174290 INTERCHANGEABLE
Panel,indicator
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6850-01-008-0946 INTERCHANGEABLE
Toner,direct Electrostatic Proce
1730-01-535-9287512-012 INTERCHANGEABLE
Tie Down,aircraft Mooring
Clarke Hess Communication Research Corp
5310-01-625-618051-2012 INTERCHANGEABLE
Nut,self-Locking,hexagon
Phillips Corporation Div Federal Division
Cross-Reference Index
Part NumberManufacturer
512012 PRIMARY U. S. Dynamics Corporation (USA)
Related Parts
6695-00-380-0171INTERCHANGEABLE
PANEL,INDICATOR
LD174290
6850-01-008-0946INTERCHANGEABLE
TONER,DIRECT ELECTROSTATIC PROCE
1730-01-535-9287INTERCHANGEABLE
TIE DOWN,AIRCRAFT MOORING
512-012
5310-01-625-6180INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
51-2012

Frequently Asked Questions

What is NSN 4820-01-321-8114?

NSN 4820-01-321-8114 is a Cock,drain, manufactured by U. S. Dynamics Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-321-8114?

NSN 4820-01-321-8114 has 1 cross-referenced part number: 512012 (U. S. Dynamics Corporation).

What NSN replaces 4820-01-321-8114?

There are 4 known substitutes for 4820-01-321-8114: 6695-00-380-0171, 6850-01-008-0946, 1730-01-535-9287 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 512012?

Key specifications for 512012: Material: COPPER ALLOY BODY; Furnished Items and Quantity: 1 HANDLE; Thread Direction: RIGHT-HAND ALL ENDS; Valve Operation Method: MANUAL. 9 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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