PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7901-8AFCock,poppet Drain

Parker Hannifin Corporation Div Aerospace Group Headquarters · NSN 4820-00-097-0322 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-097-0322 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-097-0322. Primary manufacturer part number: 7901-8AF.
Features
  • Cock,poppet Drain — FSC 4820
  • Flow Control Device: POPPET
  • Connection Style: BEADED (HOSE) SECOND END
  • Seat Angle: 37.0 DEGREES FIRST END
  • Nominal Outside Diameter Hose Accommodated: 0.500 INCHES SECOND END IN
  • Thread Direction: RIGHT-HAND FIRST END
  • Valve Operation Method: MANUAL
  • Thread Class: 3A FIRST END A
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Cock,poppet Drain, cataloged under National Stock Number 4820-00-097-0322, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corporation Div Aerospace Group Headquarters. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN4820-00-097-0322
Primary Part Number7901-8AF
Item NameCock,poppet Drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Aerospace Group Headquarters
StatusACTIVE
Flow Control DevicePOPPET
Connection StyleBEADED (HOSE) SECOND END
Seat Angle37.0 DEGREES FIRST END
Nominal Outside Diameter Hose Accommodated0.500 INCHES SECOND END IN
Thread DirectionRIGHT-HAND FIRST END
Valve Operation MethodMANUAL
Thread Class3A FIRST END A
Connection StyleFLARED (TUBE) FIRST END
Style DesignatorSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1660-00-020-01917901-3 INTERCHANGEABLE
Diffuser,air,aircraft Heating an
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-00-032-816431471 INTERCHANGEABLE
Cock,poppet Drain
Parker Hannifin Corporation Div Aerospace Group Headquarters
5962-01-123-6929 INTERCHANGEABLE
Microcircuit,digital
6730-01-595-022579013 INTERCHANGEABLE
Screen,projection
Da-Lite Screen Company Inc.
Cross-Reference Index
Part NumberManufacturer
7901-3 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
7901-8AF PRIMARY Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
49F9798-57 Department of the Air Force (USA)
Related Parts
1660-00-020-0191INTERCHANGEABLE
DIFFUSER,AIR,AIRCRAFT HEATING AN
7901-3
4820-00-032-8164INTERCHANGEABLE
COCK,POPPET DRAIN
31471
5962-01-123-6929INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6730-01-595-0225INTERCHANGEABLE
SCREEN,PROJECTION
79013

Frequently Asked Questions

What is NSN 4820-00-097-0322?

NSN 4820-00-097-0322 is a Cock,poppet Drain, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-097-0322?

NSN 4820-00-097-0322 has 3 cross-referenced part numbers: 7901-3 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 7901-8AF (Parker Hannifin Corporation Div Aerospace Group Headquarters), 49F9798-57 (Department of the Air Force).

What NSN replaces 4820-00-097-0322?

There are 4 known substitutes for 4820-00-097-0322: 1660-00-020-0191, 4820-00-032-8164, 5962-01-123-6929 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7901-8AF?

Key specifications for 7901-8AF: Flow Control Device: POPPET; Connection Style: BEADED (HOSE) SECOND END; Seat Angle: 37.0 DEGREES FIRST END; Nominal Outside Diameter Hose Accommodated: 0.500 INCHES SECOND END IN. 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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