PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S559Repair Kit,valve

Lawler Manufacturing Company, Inc. · NSN 4820-00-052-4071 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-052-4071 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-052-4071. Primary manufacturer part number: S559.
Features
  • Repair Kit,valve — FSC 4820
  • Supply Items and Quantities: TYERMOSTAT ASSEMBLY 1; PUSH ROD 1;PISTON ASSEMBLY 1; LINER GASKET 1; LINER 1; SPRING 1; ALLEN WRENCH 1; O-RING 6; GASKET 3; SCREW Y,SPRING HELICAL COMPRESSION 2; RETAINER 1 AND THERMOSTAT ADAPTER 1
  • Component Quantity: 20
  • 4 verified cross-references
  • Primary manufacturer: Lawler Manufacturing Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Repair Kit,valve, cataloged under National Stock Number 4820-00-052-4071, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 2 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-052-4071
Primary Part NumberS559
Item NameRepair Kit,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusCANCELLED
Supply Items and QuantitiesTYERMOSTAT ASSEMBLY 1; PUSH ROD 1;PISTON ASSEMBLY 1; LINER GASKET 1; LINER 1; SPRING 1; ALLEN WRENCH 1; O-RING 6; GASKET 3; SCREW Y,SPRING HELICAL COMPRESSION 2; RETAINER 1 AND THERMOSTAT ADAPTER 1
Component Quantity20
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-240-5905AS5194D0402 INTERCHANGEABLE
Adapter,straight,pipe to Boss
Sae International Dba Sae International
5330-00-616-7625 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
4820-01-235-4406 INTERCHANGEABLE
Valve Assembly,manifold
6110-01-472-1661798530-0002 INTERCHANGEABLE
Panel,power Distribution
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
502395 Eastman Kodak Co (USA)
S559 PRIMARY Lawler Manufacturing Company, Inc. (USA)
472643 Eastman Kodak Co (USA)
79853-02 PRIMARY Lawler Manufacturing Company, Inc. (USA)
Related Parts
4730-00-240-5905INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
AS5194D0402
5330-00-616-7625INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
4820-01-235-4406INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
6110-01-472-1661INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
798530-0002

Frequently Asked Questions

What is NSN 4820-00-052-4071?

NSN 4820-00-052-4071 is a Repair Kit,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-052-4071?

NSN 4820-00-052-4071 has 4 cross-referenced part numbers: 502395 (Eastman Kodak Co), S559 (Lawler Manufacturing Company, Inc.), 472643 (Eastman Kodak Co), 79853-02 (Lawler Manufacturing Company, Inc.).

What NSN replaces 4820-00-052-4071?

There are 4 known substitutes for 4820-00-052-4071: 4730-00-240-5905, 5330-00-616-7625, 4820-01-235-4406 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S559?

Key specifications for S559: Supply Items and Quantities: TYERMOSTAT ASSEMBLY 1; PUSH ROD 1;PISTON ASSEMBLY 1; LINER GASKET 1; LINER 1; SPRING 1; ALLEN WRENCH 1; O-RING 6; GASKET 3; SCREW Y,SPRING HELICAL COMPRESSION 2; RETAINER 1 AND THERMOSTAT ADAPTER 1; Component Quantity: 20. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-052-4071 still in active supply?

NSN 4820-00-052-4071 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.
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