PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2157-2-1/2 INValve,gate

Cincinnati Valve Company · NSN 4820-01-240-8378 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-240-8378 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-240-8378. Primary manufacturer part number: 2157-2-1/2 IN.
Features
  • Valve,gate — FSC 4820
  • Flange Face Design: PLAIN
  • Inlet Relationship with Outlet: IDENTICAL
  • Stem Type: RISING
  • Valve Operation Method: MANUAL
  • Bolt Hole Quantity: 4
  • Valve Size: 2.500 INCHES IN
  • Material: COPPER ALLOY SEAT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Seat construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-01-240-8378, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cincinnati Valve Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-240-8378
Primary Part Number2157-2-1/2 IN
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCincinnati Valve Company
StatusACTIVE
Flange Face DesignPLAIN
Inlet Relationship with OutletIDENTICAL
Stem TypeRISING
Valve Operation MethodMANUAL
Bolt Hole Quantity4
Valve Size2.500 INCHES IN
MaterialCOPPER ALLOY SEAT
Bonnet TypePACKING RETAINING
Connection TypeFLANGE, ROUND W/HOLES
Face to Face Distance6.750 INCHES IN
MaterialCOPPER ALLOY BODY
MaterialCOPPER ALLOY DISK
MaterialCOPPER ALLOY STEM
Flange Diameter6.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-036-61735322 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
6640-00-127-478046814-00 INTERCHANGEABLE
Test Tube,comparison
Hach Company Dba Hach Co
5935-00-161-4718 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5315-00-297-12992157 INTERCHANGEABLE
Pin,tapered,plain
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5355-00-433-49262157 INTERCHANGEABLE
Dial-Knob,lock
Bi Technologies Corporation Div Bi Technologies Corp.
5315-00-474-9724 INTERCHANGEABLE
Pin,straight,headless
5330-00-596-766115254-18 INTERCHANGEABLE
Packing,preformed
Meggitt (new Hampshire), Inc
5315-00-628-42102157 INTERCHANGEABLE
Pin,quick Release
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
5815-00-975-9718 INTERCHANGEABLE
Shaft
5975-01-082-01622157 INTERCHANGEABLE
Bushing,electrical Conductor
Heyco Inc Dba Heyco Products
Cross-Reference Index
Part NumberManufacturer
2157-2-1/2 IN Cincinnati Valve Company (USA)
2157 Lunkenheimer Co (USA)
2157-2-1/2 IN Lunkenheimer Co (USA)
2152 21/2IN Lunkenheimer Co (USA)
Related Parts
5950-00-036-6173INTERCHANGEABLE
TRANSFORMER,POWER
5322
6640-00-127-4780INTERCHANGEABLE
TEST TUBE,COMPARISON
46814-00
5935-00-161-4718INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5315-00-297-1299INTERCHANGEABLE
PIN,TAPERED,PLAIN
2157
5355-00-433-4926INTERCHANGEABLE
DIAL-KNOB,LOCK
2157
5315-00-474-9724INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5330-00-596-7661INTERCHANGEABLE
PACKING,PREFORMED
15254-18
5315-00-628-4210INTERCHANGEABLE
PIN,QUICK RELEASE
2157
5815-00-975-9718INTERCHANGEABLE
SHAFT
5975-01-082-0162INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUCTOR
2157
5950-01-185-1997INTERCHANGEABLE
TRANSFORMER
2510-01-263-8063INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
33049

Frequently Asked Questions

What is NSN 4820-01-240-8378?

NSN 4820-01-240-8378 is a Valve,gate, manufactured by Cincinnati Valve Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-240-8378?

NSN 4820-01-240-8378 has 4 cross-referenced part numbers: 2157-2-1/2 IN (Cincinnati Valve Company), 2157 (Lunkenheimer Co), 2157-2-1/2 IN (Lunkenheimer Co), 2152 21/2IN (Lunkenheimer Co).

What NSN replaces 4820-01-240-8378?

There are 12 known substitutes for 4820-01-240-8378: 5950-00-036-6173, 6640-00-127-4780, 5935-00-161-4718 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2157-2-1/2 IN?

Key specifications for 2157-2-1/2 IN: Flange Face Design: PLAIN; Inlet Relationship with Outlet: IDENTICAL; Stem Type: RISING; Valve Operation Method: MANUAL. 14 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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