PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4478Seat,valve

Lockheed Martin Corporation Div Rms · NSN 4820-00-614-2032 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-614-2032 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-614-2032. Primary manufacturer part number: 4478.
Features
  • Seat,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-614-2032, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersNorthrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (CAGE 92755); Naval Ship Systems Command (CAGE 80064); Lockheed Martin Corporation Div Rms (CAGE 03538)
Technical Specifications
ParameterValue
NSN4820-00-614-2032
Primary Part Number4478
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6210-00-135-700844-78 INTERCHANGEABLE
Light,indicator
Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Illinois Tool Works
5360-00-291-12324478 INTERCHANGEABLE
Spring,helical,compression
Leslie Controls, Inc. Dba Leslie Controls Inc
3020-00-351-9592 INTERCHANGEABLE
Gear,spur
5120-00-369-3534405-4105-538528ALT2 INTERCHANGEABLE
Wrench,spanner
Naval Ship Systems Command
6240-00-691-0369149518 INTERCHANGEABLE
Lamp,incandescent
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
5915-01-038-3884 INTERCHANGEABLE
Filter,band Pass
5120-01-512-91974478 INTERCHANGEABLE
Wrench,torque
Wright Tool Co
6515-01-555-1111CX7050 INTERCHANGEABLE
Handpiece,surgical Apparatus
Bausch & Lomb Incorporated Div Surgical
6515-01-703-40284003 INTERCHANGEABLE
Sensor,oxygen Monitoring
Masimo Corporation
Cross-Reference Index
Part NumberManufacturer
D311079 Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
H3304062PC37 Naval Ship Systems Command (USA)
4478 PRIMARY Lockheed Martin Corporation Div Rms (USA)
H311-003HPC37 Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
Related Parts
6210-00-135-7008INTERCHANGEABLE
LIGHT,INDICATOR
44-78
5360-00-291-1232INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4478
3020-00-351-9592INTERCHANGEABLE
GEAR,SPUR
5120-00-369-3534INTERCHANGEABLE
WRENCH,SPANNER
405-4105-538528ALT2
6240-00-691-0369INTERCHANGEABLE
LAMP,INCANDESCENT
149518
5915-01-038-3884INTERCHANGEABLE
FILTER,BAND PASS
5120-01-512-9197INTERCHANGEABLE
WRENCH,TORQUE
4478
6515-01-555-1111INTERCHANGEABLE
HANDPIECE,SURGICAL APPARATUS
CX7050
6515-01-703-4028INTERCHANGEABLE
SENSOR,OXYGEN MONITORING
4003

Frequently Asked Questions

What is NSN 4820-00-614-2032?

NSN 4820-00-614-2032 is a Seat,valve, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-614-2032?

NSN 4820-00-614-2032 has 4 cross-referenced part numbers: D311079 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), H3304062PC37 (Naval Ship Systems Command), 4478 (Lockheed Martin Corporation Div Rms), H311-003HPC37 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp).

What NSN replaces 4820-00-614-2032?

There are 9 known substitutes for 4820-00-614-2032: 6210-00-135-7008, 5360-00-291-1232, 3020-00-351-9592 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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