PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

750C7Cock,poppet Drain

Auto-Valve, Inc · NSN 4820-00-474-3945 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-474-3945 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-474-3945. Primary manufacturer part number: 750C7.
Features
  • Cock,poppet Drain — FSC 4820
  • Connection Style: GASKET SEAL (TUBE) FIRST END
  • Thread Series Designator: UNEF FIRST END
  • Thread Class: 3A FIRST END A
  • Thread Quantity Per Inch: 20 FIRST END
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Style Designator: ANGLE
  • Valve Operation Method: MANUAL
Applications
  • Applications requiring Steel Corrosion Resisting Flow Control Device construction
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-00-474-3945, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Auto-Valve, Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-474-3945
Primary Part Number750C7
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAuto-Valve, Inc
StatusCANCELLED
Connection StyleGASKET SEAL (TUBE) FIRST END
Thread Series DesignatorUNEF FIRST END
Thread Class3A FIRST END A
Thread Quantity Per Inch20 FIRST END
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Style DesignatorANGLE
Valve Operation MethodMANUAL
Flow Control DevicePOPPET
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread DirectionRIGHT-HAND FIRST END
Nominal Thread Size1.000 INCHES FIRST END IN
Operating Pressure5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Nominal Outside Diameter Tube Accommodated1.000 INCHES FIRST END IN
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY BODY
MaterialALUMINUM ALLOY BODY LINING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3110-00-100-02610604400 INTERCHANGEABLE
Cone and Rollers,tapered Roller
New Holland Construction
3020-01-135-4367969-40 INTERCHANGEABLE
Chain
Insinger Machine Co
5340-01-279-876296940 INTERCHANGEABLE
Bracket
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
750C7 PRIMARY Auto-Valve, Inc (USA)
695477-5 Lockheed Martin Corp (USA)
604400 PRIMARY Transdigm Inc Div Aero Fluid Products (USA)
96940 PRIMARY Clary Corp Dba Clary Corp Div Clary Corporation (USA)
Related Parts
3110-00-100-0261INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
0604400
3020-01-135-4367INTERCHANGEABLE
CHAIN
969-40
5340-01-279-8762INTERCHANGEABLE
BRACKET
96940

Frequently Asked Questions

What is NSN 4820-00-474-3945?

NSN 4820-00-474-3945 is a Cock,poppet Drain, manufactured by Auto-Valve, Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-474-3945?

NSN 4820-00-474-3945 has 4 cross-referenced part numbers: 750C7 (Auto-Valve, Inc), 695477-5 (Lockheed Martin Corp), 604400 (Transdigm Inc Div Aero Fluid Products), 96940 (Clary Corp Dba Clary Corp Div Clary Corporation).

What NSN replaces 4820-00-474-3945?

There are 3 known substitutes for 4820-00-474-3945: 3110-00-100-0261, 3020-01-135-4367, 5340-01-279-8762. Verify interchangeability with system specifications before substitution.

What are the specifications of 750C7?

Key specifications for 750C7: Connection Style: GASKET SEAL (TUBE) FIRST END; Thread Series Designator: UNEF FIRST END; Thread Class: 3A FIRST END A; Thread Quantity Per Inch: 20 FIRST END. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-474-3945 still in active supply?

NSN 4820-00-474-3945 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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