PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121995Valve,stop-Check

Aerco International, Inc. Dba Aerco International Inc · NSN 4820-01-650-5353 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-650-5353 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-650-5353. Primary manufacturer part number: 121995.
Features
  • Valve,stop-Check — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Aerco International, Inc. Dba Aerco International Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,stop-Check, cataloged under National Stock Number 4820-01-650-5353, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aerco International, Inc. Dba Aerco International Inc. This item has 3 commercial cross-references 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.

Catalog Facts
Item NameValve,stop-Check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersAerco International, Inc. Dba Aerco International Inc (CAGE 95368)
Technical Specifications
ParameterValue
NSN4820-01-650-5353
Primary Part Number121995
Item NameValve,stop-Check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAerco International, Inc. Dba Aerco International Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6685-00-068-344645-1377BS02B600 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
5120-00-230-7900DWG5120-00-230-7900 INTERCHANGEABLE
Adjuster,spring,communications E
General Services Administration Federal Supply Service
3040-00-370-1778121995 INTERCHANGEABLE
Lever,manual Control
Telemechanics Inc
5935-00-549-5312SM-B-342540 INTERCHANGEABLE
Jack,telephone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2910-00-773-57661538139 INTERCHANGEABLE
Parts Kit,fuel Pump
Mack Trucks Inc Parts Opn
1040-00-936-938854A50B204-1 INTERCHANGEABLE
Tube Assy
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-229-691320777 INTERCHANGEABLE
Valve,flow Control
Aerco International, Inc. Dba Aerco International Inc
4720-01-271-800320777 INTERCHANGEABLE
Hose,preformed
Gates Corporation
4820-01-650-5375122933 INTERCHANGEABLE
Valve,stop-Check
Aerco International, Inc. Dba Aerco International Inc
Cross-Reference Index
Part NumberManufacturer
20777 ITEM 8 Aerco International, Inc. Dba Aerco International Inc (USA)
20777 Aerco International, Inc. Dba Aerco International Inc (USA)
121995 PRIMARY Aerco International, Inc. Dba Aerco International Inc (USA)
Related Parts
6685-00-068-3446INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1377BS02B600
5120-00-230-7900INTERCHANGEABLE
ADJUSTER,SPRING,COMMUNICATIONS E
DWG5120-00-230-7900
3040-00-370-1778INTERCHANGEABLE
LEVER,MANUAL CONTROL
121995
5935-00-549-5312INTERCHANGEABLE
JACK,TELEPHONE
SM-B-342540
2910-00-773-5766INTERCHANGEABLE
PARTS KIT,FUEL PUMP
1538139
1040-00-936-9388INTERCHANGEABLE
TUBE ASSY
54A50B204-1
4820-01-229-6913INTERCHANGEABLE
VALVE,FLOW CONTROL
20777
4720-01-271-8003INTERCHANGEABLE
HOSE,PREFORMED
20777
4820-01-650-5375INTERCHANGEABLE
VALVE,STOP-CHECK
122933

Frequently Asked Questions

What is NSN 4820-01-650-5353?

NSN 4820-01-650-5353 is a Valve,stop-Check, manufactured by Aerco International, Inc. Dba Aerco International Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-650-5353?

NSN 4820-01-650-5353 has 3 cross-referenced part numbers: 20777 ITEM 8 (Aerco International, Inc. Dba Aerco International Inc), 20777 (Aerco International, Inc. Dba Aerco International Inc), 121995 (Aerco International, Inc. Dba Aerco International Inc).

What NSN replaces 4820-01-650-5353?

There are 9 known substitutes for 4820-01-650-5353: 6685-00-068-3446, 5120-00-230-7900, 3040-00-370-1778 and 6 more. Verify interchangeability with system specifications before substitution.

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