PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4400571-2220O-Ring

Marotta Controls Inc · NSN 5331-01-727-2219 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-727-2219 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-727-2219. Primary manufacturer part number: 4400571-2220.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Marotta Controls Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-727-2219, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Marotta Controls Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersMarotta Controls Inc (CAGE 99657)
Technical Specifications
ParameterValue
NSN5331-01-727-2219
Primary Part Number4400571-2220
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMarotta Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4520-01-723-1595238295-0001 INTERCHANGEABLE
Heating Element,electrical,nonim
Marotta Controls Inc
5365-01-723-1745104664-0001 INTERCHANGEABLE
Spacer,sleeve
Marotta Controls Inc
Cross-Reference Index
Part NumberManufacturer
238295-0001 ITEM NO. 60 Marotta Controls Inc (USA)
4400571-2220 PRIMARY Marotta Controls Inc (USA)
238295-0001 Marotta Controls Inc (USA)
Related Parts
4520-01-723-1595INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
238295-0001
5365-01-723-1745INTERCHANGEABLE
SPACER,SLEEVE
104664-0001

Frequently Asked Questions

What is NSN 5331-01-727-2219?

NSN 5331-01-727-2219 is a O-Ring, manufactured by Marotta Controls Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-727-2219?

NSN 5331-01-727-2219 has 3 cross-referenced part numbers: 238295-0001 ITEM NO. 60 (Marotta Controls Inc), 4400571-2220 (Marotta Controls Inc), 238295-0001 (Marotta Controls Inc).

What NSN replaces 5331-01-727-2219?

There are 2 known substitutes for 5331-01-727-2219: 4520-01-723-1595, 5365-01-723-1745. Verify interchangeability with system specifications before substitution.

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