PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

IC-MC-32GB21-GVB-1-NGA-3-2.937Valve,flow Control

Mcnab, Incorporated · NSN 4820-01-143-2896 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-143-2896 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-143-2896. Primary manufacturer part number: IC-MC-32GB21-GVB-1-NGA-3-2.937.
Features
  • Valve,flow Control — FSC 4820
  • Operating Pressure and Type: 150.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS
  • Body Material: COPPER ALLOY
  • Maximum Operating Temp and Media for Which Designed: 250.0 FAHRENHEIT WATER DEGF
  • 2 verified cross-references
  • Primary manufacturer: Mcnab, Incorporated
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,flow Control, cataloged under National Stock Number 4820-01-143-2896, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mcnab, Incorporated. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-143-2896
Primary Part NumberIC-MC-32GB21-GVB-1-NGA-3-2.937
Item NameValve,flow Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMcnab, Incorporated
StatusACTIVE
Operating Pressure and Type150.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS
Body MaterialCOPPER ALLOY
Maximum Operating Temp and Media for Which Designed250.0 FAHRENHEIT WATER DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-252-4826 INTERCHANGEABLE
Seal,plain Encased
5330-00-728-830619509 INTERCHANGEABLE
Gasket
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5950-01-019-5365989114-1C INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
6625-01-206-689519509 INTERCHANGEABLE
Voltmeter
Avo Intl
6685-01-474-173819509 INTERCHANGEABLE
Transmitter Group,humidity-Tempe
Deban Enterprises, Inc.
5305-01-645-028919509 INTERCHANGEABLE
Screw,cap,hexagon Head
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
Cross-Reference Index
Part NumberManufacturer
IC-MC-32GB21-GVB-1-NGA-3-2.937 Mcnab, Incorporated (USA)
19509 Mcnab, Incorporated (USA)
Related Parts
5330-00-252-4826INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-728-8306INTERCHANGEABLE
GASKET
19509
5950-01-019-5365INTERCHANGEABLE
COIL,RADIO FREQUENCY
989114-1C
6625-01-206-6895INTERCHANGEABLE
VOLTMETER
19509
6685-01-474-1738INTERCHANGEABLE
TRANSMITTER GROUP,HUMIDITY-TEMPE
19509
5305-01-645-0289INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
19509

Frequently Asked Questions

What is NSN 4820-01-143-2896?

NSN 4820-01-143-2896 is a Valve,flow Control, manufactured by Mcnab, Incorporated, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-143-2896?

NSN 4820-01-143-2896 has 2 cross-referenced part numbers: IC-MC-32GB21-GVB-1-NGA-3-2.937 (Mcnab, Incorporated), 19509 (Mcnab, Incorporated).

What NSN replaces 4820-01-143-2896?

There are 6 known substitutes for 4820-01-143-2896: 5330-00-252-4826, 5330-00-728-8306, 5950-01-019-5365 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of IC-MC-32GB21-GVB-1-NGA-3-2.937?

Key specifications for IC-MC-32GB21-GVB-1-NGA-3-2.937: Operating Pressure and Type: 150.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LBS; Body Material: COPPER ALLOY; Special Features: SALINITY CELL 1; BRONZE NIPPLE 1; Maximum Operating Temp and Media for Which Designed: 250.0 FAHRENHEIT WATER DEGF. 4 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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