PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32020Seat,valve

Eaton Aerospace, Llc Dba Jackson South · NSN 4820-00-218-6273 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-218-6273 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-218-6273. Primary manufacturer part number: 32020.
Features
  • Seat,valve — FSC 4820
  • Material: STEEL OVERALL
  • Material Document and Classification: FED STD 66,AISI/SAE 4145 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Body Outside Diameter: 3.375 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: Eaton Aerospace, Llc Dba Jackson South
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-218-6273, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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
NSN4820-00-218-6273
Primary Part Number32020
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
MaterialSTEEL OVERALL
Material Document and ClassificationFED STD 66,AISI/SAE 4145 FED STD SINGLE MATERIAL RESPONSE OVERALL
Body Outside Diameter3.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-196-5330 INTERCHANGEABLE
Packing,preformed
5815-00-228-6697SC-C-69992-23 INTERCHANGEABLE
Bar,connecting,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-291-3352 INTERCHANGEABLE
Seal,plain Encased
1680-00-630-259850044 INTERCHANGEABLE
Parts Kit,actuator
Meggitt North Hollywood Inc
5940-00-680-95295004-4 INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
5310-00-781-12215004-4 INTERCHANGEABLE
Nut,plain,hexagon
Transdigm Inc
5930-00-823-6135 INTERCHANGEABLE
Switch,rotary
5340-01-167-9936 INTERCHANGEABLE
Connector,rod End
5355-01-181-056350044 INTERCHANGEABLE
Dial,scale
Republic Machinery Co Inc Dba Republic Lagun Machine Tool Co
5340-01-198-819832020 INTERCHANGEABLE
Clamp,loop
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
45642-3PC119 Eaton Aerospace, Llc Dba Jackson South (USA)
32020 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
45642-18PC119 Eaton Aerospace, Llc Dba Jackson South (USA)
F50098PC50044 Eaton Aerospace, Llc Dba Jackson South (USA)
50044 Eaton Aerospace, Llc Dba Jackson South (USA)
32020 Reidville Hydraulics & Mfg Inc (USA)
Related Parts
5330-00-196-5330INTERCHANGEABLE
PACKING,PREFORMED
5815-00-228-6697INTERCHANGEABLE
BAR,CONNECTING,TELETYPEWRITER
SC-C-69992-23
5330-00-291-3352INTERCHANGEABLE
SEAL,PLAIN ENCASED
1680-00-630-2598INTERCHANGEABLE
PARTS KIT,ACTUATOR
50044
5940-00-680-9529INTERCHANGEABLE
TERMINAL,LUG
5004-4
5310-00-781-1221INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5004-4
5930-00-823-6135INTERCHANGEABLE
SWITCH,ROTARY
5340-01-167-9936INTERCHANGEABLE
CONNECTOR,ROD END
5355-01-181-0563INTERCHANGEABLE
DIAL,SCALE
50044
5340-01-198-8198INTERCHANGEABLE
CLAMP,LOOP
32020
5330-01-201-5091INTERCHANGEABLE
PACKING
2510-01-238-0950INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
20734

Frequently Asked Questions

What is NSN 4820-00-218-6273?

NSN 4820-00-218-6273 is a Seat,valve, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-218-6273?

NSN 4820-00-218-6273 has 6 cross-referenced part numbers: 45642-3PC119 (Eaton Aerospace, Llc Dba Jackson South), 32020 (Eaton Aerospace, Llc Dba Jackson South), 45642-18PC119 (Eaton Aerospace, Llc Dba Jackson South), F50098PC50044 (Eaton Aerospace, Llc Dba Jackson South), 50044 (Eaton Aerospace, Llc Dba Jackson South) and 1 more.

What NSN replaces 4820-00-218-6273?

There are 12 known substitutes for 4820-00-218-6273: 5330-00-196-5330, 5815-00-228-6697, 5330-00-291-3352 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32020?

Key specifications for 32020: Material: STEEL OVERALL; Material Document and Classification: FED STD 66,AISI/SAE 4145 FED STD SINGLE MATERIAL RESPONSE OVERALL; Body Outside Diameter: 3.375 INCHES NOMINAL IN. 3 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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