PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P-401Valve,vent

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-510-8724 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-510-8724 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-510-8724. Primary manufacturer part number: P-401.
Features
  • Valve,vent — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,vent, cataloged under National Stock Number 4820-01-510-8724, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-510-8724
Primary Part NumberP-401
Item NameValve,vent
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6240-00-143-307050ARS115V INTERCHANGEABLE
Lamp,incandescent
Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company
4730-00-477-7937P401-125-060 INTERCHANGEABLE
Restrictor,fluid Flow
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
4730-00-477-7938P401-150-060 INTERCHANGEABLE
Restrictor,fluid Flow
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5305-00-983-6656 INTERCHANGEABLE
Screw,cap,socket Head
4730-01-257-0899P401-175-982 INTERCHANGEABLE
Restrictor,fluid Flow
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
4730-01-257-4988P401-200-1290 INTERCHANGEABLE
Restrictor,fluid Flow
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
4730-01-257-8930P401-075-435 INTERCHANGEABLE
Restrictor,fluid Flow
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
1990-01-280-3692P-401 INTERCHANGEABLE
Ferry,causeway
Naval Facilities Engineering Command
5130-01-387-7451401 INTERCHANGEABLE
Extractor Set,screw,powered
Alden Corporation Dba Drill-Out
Cross-Reference Index
Part NumberManufacturer
P-401 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
6240-00-143-3070INTERCHANGEABLE
LAMP,INCANDESCENT
50ARS115V
4730-00-477-7937INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
P401-125-060
4730-00-477-7938INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
P401-150-060
5305-00-983-6656INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
4730-01-257-0899INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
P401-175-982
4730-01-257-4988INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
P401-200-1290
4730-01-257-8930INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
P401-075-435
1990-01-280-3692INTERCHANGEABLE
FERRY,CAUSEWAY
P-401
5130-01-387-7451INTERCHANGEABLE
EXTRACTOR SET,SCREW,POWERED
401

Frequently Asked Questions

What is NSN 4820-01-510-8724?

NSN 4820-01-510-8724 is a Valve,vent, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-510-8724?

NSN 4820-01-510-8724 has 1 cross-referenced part number: P-401 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-01-510-8724?

There are 9 known substitutes for 4820-01-510-8724: 6240-00-143-3070, 4730-00-477-7937, 4730-00-477-7938 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P-401?

Key specifications for P-401: Part Name Assigned by Controlling Agency: VENT FUEL VALVE. 1 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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