PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2677A-4TTValve,check

Parker Hannifin Corporation Div Aerospace Group Headquarters · NSN 4820-01-326-0225 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-326-0225 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-326-0225. Primary manufacturer part number: 2677A-4TT.
Features
  • Valve,check — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Parker Hannifin Corporation Div Aerospace Group Headquarters
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-326-0225, 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. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersParker Hannifin Corporation Div Aerospace Group Headquarters (CAGE 92003)
Technical Specifications
ParameterValue
NSN4820-01-326-0225
Primary Part Number2677A-4TT
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Aerospace Group Headquarters
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-008-19842632A-4TT INTERCHANGEABLE
Valve,check
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
2677A-4TT PRIMARY Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
Related Parts
4820-01-008-1984INTERCHANGEABLE
VALVE,CHECK
2632A-4TT

Frequently Asked Questions

What is NSN 4820-01-326-0225?

NSN 4820-01-326-0225 is a Valve,check, 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 4820-01-326-0225?

NSN 4820-01-326-0225 has 1 cross-referenced part number: 2677A-4TT (Parker Hannifin Corporation Div Aerospace Group Headquarters).

What NSN replaces 4820-01-326-0225?

There is 1 known substitute for 4820-01-326-0225: 4820-01-008-1984. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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