PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A800Valve,vent

Eaton Aerospace Llc Div Fluid and Electrical Distribution Division · NSN 4820-00-091-4720 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-091-4720 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-091-4720. Primary manufacturer part number: A800.
Features
  • Valve,vent — FSC 4820
  • Connection Style: PLAIN (TUBE) ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Thread Series Designator: UNF ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Nominal Thread Size: 0.562 INCHES ALL ENDS IN
  • Thread Class: 2A ALL ENDS A
  • Material: ALUMINUM ALLOY BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Body construction
General Description

The Valve,vent, cataloged under National Stock Number 4820-00-091-4720, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc Div Fluid and Electrical Distribution Division. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-091-4720
Primary Part NumberA800
Item NameValve,vent
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc Div Fluid and Electrical Distribution Division
StatusCANCELLED
Connection StylePLAIN (TUBE) ALL ENDS
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorUNF ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Nominal Thread Size0.562 INCHES ALL ENDS IN
Thread Class2A ALL ENDS A
MaterialALUMINUM ALLOY BODY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5330-00-097-97729074-0-87 INTERCHANGEABLE
Packing Assembly
Velan Valve Corp.
7520-00-232-68287520-00-232-6828 INTERCHANGEABLE
Tray,desk
Stec-Steadfast Technics Llc Dba Stec-Steadfast Technics Div 60
5935-00-503-9386 INTERCHANGEABLE
Adapter,connector
5930-00-549-0197A800 INTERCHANGEABLE
Switch,push
Safran Power Usa, Llc
3120-00-801-0350A800 INTERCHANGEABLE
Bearing,sleeve
Beemer Precision Inc
5365-00-860-469730210-1 INTERCHANGEABLE
Shim
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
5305-01-306-9441 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
9074087 Us Army Aviation and Missile Command (USA)
A800 PRIMARY Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
A800 Satair A/s (DNK)
Related Parts
5330-00-097-9772INTERCHANGEABLE
PACKING ASSEMBLY
9074-0-87
7520-00-232-6828INTERCHANGEABLE
TRAY,DESK
7520-00-232-6828
5935-00-503-9386INTERCHANGEABLE
ADAPTER,CONNECTOR
5930-00-549-0197INTERCHANGEABLE
SWITCH,PUSH
A800
3120-00-801-0350INTERCHANGEABLE
BEARING,SLEEVE
A800
5365-00-860-4697INTERCHANGEABLE
SHIM
30210-1
5305-01-306-9441INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 4820-00-091-4720?

NSN 4820-00-091-4720 is a Valve,vent, manufactured by Eaton Aerospace Llc Div Fluid and Electrical Distribution Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-091-4720?

NSN 4820-00-091-4720 has 3 cross-referenced part numbers: 9074087 (Us Army Aviation and Missile Command), A800 (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division), A800 (Satair A/s).

What NSN replaces 4820-00-091-4720?

There are 7 known substitutes for 4820-00-091-4720: 5330-00-097-9772, 7520-00-232-6828, 5935-00-503-9386 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A800?

Key specifications for A800: Connection Style: PLAIN (TUBE) ALL ENDS; Style Designator: STRAIGHT THRU; Thread Series Designator: UNF ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-091-4720 still in active supply?

NSN 4820-00-091-4720 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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