PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70161Seat,valve

Walworth Co the · NSN 4820-00-421-7592 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-421-7592 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-421-7592. Primary manufacturer part number: 70161.
Features
  • Seat,valve — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 3 verified cross-references
  • Primary manufacturer: Walworth Co the
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-421-7592, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Walworth Co the. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-421-7592
Primary Part Number70161
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWalworth Co the
StatusCANCELLED
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5935-00-057-96717016-1 INTERCHANGEABLE
Connector,receptacle,electrical
Microwave Devices Inc
6210-00-841-8263101-0931-200 INTERCHANGEABLE
Lens,light
Dialight Corporation
5935-01-215-8680BD16-1 INTERCHANGEABLE
Connector,plug,electrical
Tyco Electronics Elcon Power Connector Products Group
4820-01-276-3843803-4384536-71B-85 INTERCHANGEABLE
Seat,valve
Naval Ship Systems Command
5330-01-374-525170161 INTERCHANGEABLE
Gasket
Ingersoll-Rand Co Material Handling Div
1660-01-434-239670161 INTERCHANGEABLE
Diffuser,air,aircraft Heating an
Technical Heaters, Inc. Dba Technical Heaters Inc
5120-01-434-9828 INTERCHANGEABLE
Punch,starter
6530-01-708-312870161 INTERCHANGEABLE
Lid,thermal Isolation Chamber
Peli Biothermal Llc Div Biothermal Division of Pelican Products Inc.
Cross-Reference Index
Part NumberManufacturer
70161 Walworth Co the (USA)
803-4384536-71B-13 Naval Sea Systems Command (USA)
DS48805-6PC5-1 1-2IN Walworth Co the (USA)
Related Parts
5935-00-057-9671INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7016-1
6210-00-841-8263INTERCHANGEABLE
LENS,LIGHT
101-0931-200
5935-01-215-8680INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
BD16-1
4820-01-276-3843INTERCHANGEABLE
SEAT,VALVE
803-4384536-71B-85
5330-01-374-5251INTERCHANGEABLE
GASKET
70161
1660-01-434-2396INTERCHANGEABLE
DIFFUSER,AIR,AIRCRAFT HEATING AN
70161
5120-01-434-9828INTERCHANGEABLE
PUNCH,STARTER
6530-01-708-3128INTERCHANGEABLE
LID,THERMAL ISOLATION CHAMBER
70161

Frequently Asked Questions

What is NSN 4820-00-421-7592?

NSN 4820-00-421-7592 is a Seat,valve, manufactured by Walworth Co the, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-421-7592?

NSN 4820-00-421-7592 has 3 cross-referenced part numbers: 70161 (Walworth Co the), 803-4384536-71B-13 (Naval Sea Systems Command), DS48805-6PC5-1 1-2IN (Walworth Co the).

What NSN replaces 4820-00-421-7592?

There are 8 known substitutes for 4820-00-421-7592: 5935-00-057-9671, 6210-00-841-8263, 5935-01-215-8680 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70161?

Key specifications for 70161: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-421-7592 still in active supply?

NSN 4820-00-421-7592 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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