PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1428Valve,gate

Lunkenheimer Co · NSN 4820-00-640-6573 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-640-6573 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-640-6573. Primary manufacturer part number: 1428.
Features
  • Valve,gate — FSC 4820
  • Features Provided: BONNET PACKING
  • Bonnet Attachment Method: BOLTED
  • Operating Pressure and Type: 125.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 200.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • Valve Operation Method: MANUAL
  • Flange Diameter: 13.500 INCHES IN
  • Face to Face Distance: 11.500 INCHES IN
  • Flange Face Design: PLAIN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Iron Cast Body construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-00-640-6573, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lunkenheimer Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-640-6573
Primary Part Number1428
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLunkenheimer Co
StatusCANCELLED
Features ProvidedBONNET PACKING
Bonnet Attachment MethodBOLTED
Operating Pressure and Type125.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 200.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Valve Operation MethodMANUAL
Flange Diameter13.500 INCHES IN
Face to Face Distance11.500 INCHES IN
Flange Face DesignPLAIN
Bolt Hole Quantity8
MaterialIRON CAST BODY
Material Document and ClassificationASTM A216-61T,CL B ASSN STD SINGLE MATERIAL RESPONSE BODY
MaterialCOPPER ALLOY SEAT
Bonnet TypeINSIDE SCREW
Stem TypeNONRISING
MaterialCOPPER ALLOY DISK
Connection TypeFLANGE, ROUND W/HOLES
MaterialSTEEL STEM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-063-1276 INTERCHANGEABLE
Nut,plain,slotted,hexagon
5120-00-144-2089DWG5120-00-144-2089 INTERCHANGEABLE
Chuck,stud
General Services Administration Federal Supply Service
3020-00-196-48701428 INTERCHANGEABLE
Gear,spur
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
2530-00-213-0557391178C92 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Navistar Intl Corp Truck Br Ohio Plant
4940-00-223-897353025 INTERCHANGEABLE
Gun,air Blow
Bowes Mfg Inc
5325-00-263-6648 INTERCHANGEABLE
Grommet,nonmetallic
4820-00-268-87731787 SZ 4 IN INTERCHANGEABLE
Valve,gate
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
2915-00-484-8168P61144-1 INTERCHANGEABLE
Pin-Mi,ture Control
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5120-00-725-6981BF603B INTERCHANGEABLE
Hammer,hand
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
6625-00-925-3924 INTERCHANGEABLE
Ammeter
Cross-Reference Index
Part NumberManufacturer
1428 Lunkenheimer Co (USA)
Related Parts
5310-00-063-1276INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
5120-00-144-2089INTERCHANGEABLE
CHUCK,STUD
DWG5120-00-144-2089
3020-00-196-4870INTERCHANGEABLE
GEAR,SPUR
1428
2530-00-213-0557INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
391178C92
4940-00-223-8973INTERCHANGEABLE
GUN,AIR BLOW
53025
5325-00-263-6648INTERCHANGEABLE
GROMMET,NONMETALLIC
4820-00-268-8773INTERCHANGEABLE
VALVE,GATE
1787 SZ 4 IN
2915-00-484-8168INTERCHANGEABLE
PIN-MI,TURE CONTROL
P61144-1
5120-00-725-6981INTERCHANGEABLE
HAMMER,HAND
BF603B
6625-00-925-3924INTERCHANGEABLE
AMMETER
5940-00-964-1217INTERCHANGEABLE
TERMINAL,STUD
10688452-2
5310-01-104-1079INTERCHANGEABLE
NUT,PLAIN,CAP
A33006

Frequently Asked Questions

What is NSN 4820-00-640-6573?

NSN 4820-00-640-6573 is a Valve,gate, manufactured by Lunkenheimer Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-640-6573?

NSN 4820-00-640-6573 has 1 cross-referenced part number: 1428 (Lunkenheimer Co).

What NSN replaces 4820-00-640-6573?

There are 12 known substitutes for 4820-00-640-6573: 5310-00-063-1276, 5120-00-144-2089, 3020-00-196-4870 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1428?

Key specifications for 1428: Features Provided: BONNET PACKING; Bonnet Attachment Method: BOLTED; Operating Pressure and Type: 125.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 200.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Valve Operation Method: MANUAL. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-640-6573 still in active supply?

NSN 4820-00-640-6573 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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