PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123312-2-1Valve,check

Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) · NSN 4820-00-866-7985 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-866-7985 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-866-7985. Primary manufacturer part number: 123312-2-1.
Features
  • Valve,check — FSC 4820
  • 6 verified cross-references
  • Primary manufacturer: Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-00-866-7985, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHoneywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (CAGE 59364); Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (CAGE 05624); Alliedsignal Inc Dba Allied-Signal Aerospace Co (CAGE 72599); Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (CAGE 99193); Lockheed Martin Corp (CAGE 98897)
Technical Specifications
ParameterValue
NSN4820-00-866-7985
Primary Part Number123312-2-1
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6105-00-230-920880001 INTERCHANGEABLE
Motor,alternating Current
Reliance Electric Company Dba Reliance & Dodge Brands
5935-00-473-53328000-1 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
3110-00-679-4151 INTERCHANGEABLE
Bearing,ball,annular
2990-00-846-6054190-9121 INTERCHANGEABLE
Muffler,exhaust
Stemco Inc Sub of Coltec Industries Inc
5935-00-977-7454713502-1 INTERCHANGEABLE
Connector,plug,electrical
Raytheon Company Div Rmd Strategic
5935-01-043-5841 INTERCHANGEABLE
Connector,plug,electrical
5342-01-084-81188001-XU INTERCHANGEABLE
Latch Assy
Eastern Co Div Eberhard Manufacturing
6680-01-085-47208000-1 INTERCHANGEABLE
Meter,impeller Type,liquid
Cameron Energy Services Corp.
6680-01-108-41458000-1 INTERCHANGEABLE
Transmitter,liquid Quantity
Mc Products Inc
6625-01-123-043680001 INTERCHANGEABLE
Counter,electronic,digital Reado
Ohio Semitronics Inc
Cross-Reference Index
Part NumberManufacturer
123312-2-1 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA)
CYLB51412 PRIMARY Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
123312-2-1 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
123312-2-1 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
3A95553-103 Lockheed Martin Corp (USA)
8000-1 PRIMARY Bahr Machine Company Inc Dba Bahr Machine Co (USA)
Related Parts
6105-00-230-9208INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
80001
5935-00-473-5332INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
8000-1
3110-00-679-4151INTERCHANGEABLE
BEARING,BALL,ANNULAR
2990-00-846-6054INTERCHANGEABLE
MUFFLER,EXHAUST
190-9121
5935-00-977-7454INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
713502-1
5935-01-043-5841INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5342-01-084-8118INTERCHANGEABLE
LATCH ASSY
8001-XU
6680-01-085-4720INTERCHANGEABLE
METER,IMPELLER TYPE,LIQUID
8000-1
6680-01-108-4145INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
8000-1
6625-01-123-0436INTERCHANGEABLE
COUNTER,ELECTRONIC,DIGITAL READO
80001
5950-01-176-4873INTERCHANGEABLE
TRANSFORMER
8-0001
6645-01-318-1874INTERCHANGEABLE
METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 4820-00-866-7985?

NSN 4820-00-866-7985 is a Valve,check, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-866-7985?

NSN 4820-00-866-7985 has 6 cross-referenced part numbers: 123312-2-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), CYLB51412 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc), 123312-2-1 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 123312-2-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), 3A95553-103 (Lockheed Martin Corp) and 1 more.

What NSN replaces 4820-00-866-7985?

There are 12 known substitutes for 4820-00-866-7985: 6105-00-230-9208, 5935-00-473-5332, 3110-00-679-4151 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com