PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9171720Cock,poppet Drain

Us Army Aviation and Missile Command · NSN 4820-00-444-9620 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-444-9620 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-444-9620. Primary manufacturer part number: 9171720.
Features
  • Cock,poppet Drain — FSC 4820
  • Flow Control Device: POPPET
  • Maximum Operating Temp: 85.0 CELSIUS SINGLE RESPONSE DEGC
  • Surface Treatment Document and Classification: MIL-STD-171,COLOR GRAY MIL STD SINGLE TREATMENT RESPONSE
  • Thread Series Designator: NPT ALL ENDS
  • Valve Operation Method: MANUAL
  • Surface Treatment: CHROMATE
  • Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END IN
Applications
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-00-444-9620, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-444-9620
Primary Part Number9171720
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Flow Control DevicePOPPET
Maximum Operating Temp85.0 CELSIUS SINGLE RESPONSE DEGC
Surface Treatment Document and ClassificationMIL-STD-171,COLOR GRAY MIL STD SINGLE TREATMENT RESPONSE
Thread Series DesignatorNPT ALL ENDS
Valve Operation MethodMANUAL
Surface TreatmentCHROMATE
Nominal Pipe Size Accommodated0.750 INCHES FIRST END IN
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorANGLE
Nominal Thread Size0.250 INCHES ALL ENDS IN
MaterialALUMINUM ALLOY OVERALL
Operating Pressure5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread DirectionRIGHT-HAND ALL ENDS
Material Document and ClassificationQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-885-1346077960199 INTERCHANGEABLE
Valve,angle
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
4820-01-579-248507796-0199 INTERCHANGEABLE
Valve,liquid Oxygen Drain
Lockheed Martin Corporation
Cross-Reference Index
Part NumberManufacturer
9171720 PRIMARY Us Army Aviation and Missile Command (USA)
7796VSP1 Scovill Inc Schrader Bellows Div (USA)
7796-9005 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division (USA)
5A012 Arkwin Industries, Inc. Dba Arkwin Industries Inc (USA)
7796-9005 Parker Hannifin Corporation Dba Schraeder Bellows Div Pneumatic Division (USA)
7796-9005 Scovill Inc Schrader Bellows Div (USA)
7796-9905 Scovill Inc Schrader Bellows Div (USA)
7796V Scovill Mfg Co (USA)
07796-0199 Scovill Inc Schrader Bellows Div (USA)
Related Parts
4820-00-885-1346INTERCHANGEABLE
VALVE,ANGLE
077960199
4820-01-579-2485INTERCHANGEABLE
VALVE,LIQUID OXYGEN DRAIN
07796-0199

Frequently Asked Questions

What is NSN 4820-00-444-9620?

NSN 4820-00-444-9620 is a Cock,poppet Drain, manufactured by Us Army Aviation and Missile Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-444-9620?

NSN 4820-00-444-9620 has 9 cross-referenced part numbers: 9171720 (Us Army Aviation and Missile Command), 7796VSP1 (Scovill Inc Schrader Bellows Div), 7796-9005 (Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division), 5A012 (Arkwin Industries, Inc. Dba Arkwin Industries Inc), 7796-9005 (Parker Hannifin Corporation Dba Schraeder Bellows Div Pneumatic Division) and 4 more.

What NSN replaces 4820-00-444-9620?

There are 2 known substitutes for 4820-00-444-9620: 4820-00-885-1346, 4820-01-579-2485. Verify interchangeability with system specifications before substitution.

What are the specifications of 9171720?

Key specifications for 9171720: Flow Control Device: POPPET; Maximum Operating Temp: 85.0 CELSIUS SINGLE RESPONSE DEGC; Surface Treatment Document and Classification: MIL-STD-171,COLOR GRAY MIL STD SINGLE TREATMENT RESPONSE; Thread Series Designator: NPT ALL ENDS. 15 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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