PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22176-1Valve,check

Hydraulics International, Inc. Dba Hydraulics International Inc · NSN 4820-01-481-5777 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-481-5777 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-481-5777. Primary manufacturer part number: 22176-1.
Features
  • Valve,check — FSC 4820
  • Nominal Outside Diameter: 1.620 INCHES ALL ENDS IN
  • Nominal Pipe Size Accommodated: 1.000 INCHES ALL ENDS IN
  • Style Designator: STRAIGHT THRU
  • Valve Operation Method: AUTOMATIC
  • Nominal Length: 3.880 INCHES ALL ENDS IN
  • 2 verified cross-references
  • Primary manufacturer: Hydraulics International, Inc. Dba Hydraulics International Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-481-5777, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-481-5777
Primary Part Number22176-1
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydraulics International, Inc. Dba Hydraulics International Inc
StatusACTIVE
Nominal Outside Diameter1.620 INCHES ALL ENDS IN
Nominal Pipe Size Accommodated1.000 INCHES ALL ENDS IN
Style DesignatorSTRAIGHT THRU
Valve Operation MethodAUTOMATIC
Nominal Length3.880 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-100-23629102L-1V1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
5935-00-168-4159SM-A-617906-17 INTERCHANGEABLE
Connector Body,receptacle,electr
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2915-00-706-5878 INTERCHANGEABLE
Housing Pump Inlet
5365-01-155-167622176 INTERCHANGEABLE
Spacer,plate
Bradford Vibrators Co the
4730-01-172-076422176-1 INTERCHANGEABLE
Strainer Element,sediment
Tate Andale, Llc
1560-01-439-810122176 INTERCHANGEABLE
Door,access,aircraft
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
4720-01-665-0504XMA73-22138-4 INTERCHANGEABLE
Hose Assembly,nonmetallic
Rix Industries
4810-01-665-0515315-273 INTERCHANGEABLE
Valve,solenoid
Rix Industries
4720-01-665-0891A73-22138-5 INTERCHANGEABLE
Hose Assembly,nonmetallic
Rix Industries
4310-01-665-4620XM69-40 INTERCHANGEABLE
Tank,pressure
Rix Industries
Cross-Reference Index
Part NumberManufacturer
22176-1 PRIMARY Hydraulics International, Inc. Dba Hydraulics International Inc (USA)
22176 Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging (USA)
Related Parts
3110-00-100-2362INTERCHANGEABLE
BEARING,BALL,ANNULAR
9102L-1V1
5935-00-168-4159INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
SM-A-617906-17
2915-00-706-5878INTERCHANGEABLE
HOUSING PUMP INLET
5365-01-155-1676INTERCHANGEABLE
SPACER,PLATE
22176
4730-01-172-0764INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
22176-1
1560-01-439-8101INTERCHANGEABLE
DOOR,ACCESS,AIRCRAFT
22176
4720-01-665-0504INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
XMA73-22138-4
4810-01-665-0515INTERCHANGEABLE
VALVE,SOLENOID
315-273
4720-01-665-0891INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
A73-22138-5
4310-01-665-4620INTERCHANGEABLE
TANK,PRESSURE
XM69-40
1395-01-725-1883INTERCHANGEABLE
TAILPIECE,CARTRIDGE,NON-LETHAL F
22176

Frequently Asked Questions

What is NSN 4820-01-481-5777?

NSN 4820-01-481-5777 is a Valve,check, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-481-5777?

NSN 4820-01-481-5777 has 2 cross-referenced part numbers: 22176-1 (Hydraulics International, Inc. Dba Hydraulics International Inc), 22176 (Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging).

What NSN replaces 4820-01-481-5777?

There are 11 known substitutes for 4820-01-481-5777: 3110-00-100-2362, 5935-00-168-4159, 2915-00-706-5878 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22176-1?

Key specifications for 22176-1: Nominal Outside Diameter: 1.620 INCHES ALL ENDS IN; Nominal Pipe Size Accommodated: 1.000 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Valve Operation Method: AUTOMATIC. 5 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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