PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-911O-Ring

Insinger Machine Co · NSN 5331-01-194-0471 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-194-0471 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-194-0471. Primary manufacturer part number: A-911.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Insinger Machine Co
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-194-0471, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Insinger Machine Co. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersInsinger Machine Co (CAGE 30793)
Technical Specifications
ParameterValue
NSN5331-01-194-0471
Primary Part NumberA-911
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerInsinger Machine Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4330-00-766-812036M20 INTERCHANGEABLE
Filter Element,fluid
Kaydon Custom Filtration Corporation
4720-01-503-905491-46 INTERCHANGEABLE
Hose,preformed
Crane Carrier Company, Llc
4720-01-503-906191-39 INTERCHANGEABLE
Hose,preformed
Crane Carrier Company, Llc
5330-01-505-1954A-911 INTERCHANGEABLE
Seal,plain
Master Disposers Inc Dba Market-Master
5330-01-615-41875190027 INTERCHANGEABLE
Gasket
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
A-911 PRIMARY Insinger Machine Co (USA)
Related Parts
4330-00-766-8120INTERCHANGEABLE
FILTER ELEMENT,FLUID
36M20
4720-01-503-9054INTERCHANGEABLE
HOSE,PREFORMED
91-46
4720-01-503-9061INTERCHANGEABLE
HOSE,PREFORMED
91-39
5330-01-505-1954INTERCHANGEABLE
SEAL,PLAIN
A-911
5330-01-615-4187INTERCHANGEABLE
GASKET
5190027

Frequently Asked Questions

What is NSN 5331-01-194-0471?

NSN 5331-01-194-0471 is a O-Ring, manufactured by Insinger Machine Co, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-194-0471?

NSN 5331-01-194-0471 has 1 cross-referenced part number: A-911 (Insinger Machine Co).

What NSN replaces 5331-01-194-0471?

There are 5 known substitutes for 5331-01-194-0471: 4330-00-766-8120, 4720-01-503-9054, 4720-01-503-9061 and 2 more. Verify interchangeability with system specifications before substitution.

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