PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

550-023Seat Assembly

Kirby Morgan Dive Systems Inc · NSN 4220-01-237-3254 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-237-3254 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-237-3254. Primary manufacturer part number: 550-023.
Features
  • Seat Assembly — FSC 4220
  • 6 verified cross-references
  • Primary manufacturer: Kirby Morgan Dive Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Seat Assembly, cataloged under National Stock Number 4220-01-237-3254, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Kirby Morgan Dive Systems Inc. This item has 6 commercial cross-references from 4 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
NSN4220-01-237-3254
Primary Part Number550-023
Item NameSeat Assembly
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerKirby Morgan Dive Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-182-6770 INTERCHANGEABLE
Standoff,threaded,spacing
3455-00-224-365809310 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5962-00-234-8948SL7074 INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
5910-00-648-7507 INTERCHANGEABLE
Capacitor,variable,gas Dielectri
5935-00-946-3491 INTERCHANGEABLE
Adapter,connector
5325-00-970-71991894 INTERCHANGEABLE
Panel Fastener
Howmet Global Fastening Systems Inc Div Rosan Products
5360-00-980-96621894 INTERCHANGEABLE
Spring,helical,compression
Lawler Manufacturing Company, Inc.
5330-01-006-948063X1894 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5330-01-081-2258 INTERCHANGEABLE
Seal,rudder
6750-01-379-6362 INTERCHANGEABLE
Paper,photographic
Cross-Reference Index
Part NumberManufacturer
17-029 Kirby Morgan Dive Systems Inc (USA)
D6818 Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) (GBR)
592-6318185 Zf Industrieantriebe Witten Gmbh (DEU)
550-023 PRIMARY Kirby Morgan Dive Systems Inc (USA)
18-94 Kirby Morgan Dive Systems Inc (USA)
9147Y170 Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR)
Related Parts
5340-00-182-6770INTERCHANGEABLE
STANDOFF,THREADED,SPACING
3455-00-224-3658INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
09310
5962-00-234-8948INTERCHANGEABLE
MICROCIRCUIT,LINEAR
SL7074
5910-00-648-7507INTERCHANGEABLE
CAPACITOR,VARIABLE,GAS DIELECTRI
5935-00-946-3491INTERCHANGEABLE
ADAPTER,CONNECTOR
5325-00-970-7199INTERCHANGEABLE
PANEL FASTENER
1894
5360-00-980-9662INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1894
5330-01-006-9480INTERCHANGEABLE
SEAL,PLAIN ENCASED
63X1894
5330-01-081-2258INTERCHANGEABLE
SEAL,RUDDER
6750-01-379-6362INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
5410-01-463-9870INTERCHANGEABLE
PANEL,BUILDING,PREFABRICATED
55-0023
5340-01-498-9416INTERCHANGEABLE
PLUG,EXPANSION
550-023

Frequently Asked Questions

What is NSN 4220-01-237-3254?

NSN 4220-01-237-3254 is a Seat Assembly, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-237-3254?

NSN 4220-01-237-3254 has 6 cross-referenced part numbers: 17-029 (Kirby Morgan Dive Systems Inc), D6818 (Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt)), 592-6318185 (Zf Industrieantriebe Witten Gmbh), 550-023 (Kirby Morgan Dive Systems Inc), 18-94 (Kirby Morgan Dive Systems Inc) and 1 more.

What NSN replaces 4220-01-237-3254?

There are 12 known substitutes for 4220-01-237-3254: 5340-00-182-6770, 3455-00-224-3658, 5962-00-234-8948 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 550-023?

Key specifications for 550-023: End Item Identification: DLA/GSA MANAGED ITEMS THAT CANNOT BE IDENTIFIED TO A SPECIFIC ARMY WEAPONS SYSTEMS/END ITEM. 1 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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