PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50065O-Ring

Hutchinson Industries, Inc Div Defense and Industry · NSN 5331-01-578-7394 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-578-7394 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-578-7394. Primary manufacturer part number: 50065.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Hutchinson Industries, Inc Div Defense and Industry
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-578-7394, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Hutchinson Industries, Inc Div Defense and Industry. This item has 2 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.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersHutchinson Industries, Inc Div Defense and Industry (CAGE 62161); Oshkosh Corp (CAGE 45152)
Technical Specifications
ParameterValue
NSN5331-01-578-7394
Primary Part Number50065
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHutchinson Industries, Inc Div Defense and Industry
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5845-00-078-5659TR171BSQS INTERCHANGEABLE
Transducer,sonar
Joint Electronics Type Designation System
5310-00-269-62751832YA INTERCHANGEABLE
Nut,plain,slotted,hexagon
Navistar Intl Corp Truck Br Ohio Plant
5975-00-476-6234500-65 INTERCHANGEABLE
Box Connector,electrical
Fl Industries Inc Pneumotive Div
5360-00-569-719450065 INTERCHANGEABLE
Spring,helical,compression
Fluid Conditioning Products, Inc.
6130-00-578-0867 INTERCHANGEABLE
Power Supply Subassembly
3040-00-602-2767SM-C-426567 INTERCHANGEABLE
Lever,manual Control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-00-638-982235-17546Z INTERCHANGEABLE
Washer,flat
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
1650-00-698-642050065 INTERCHANGEABLE
Valve Assy,pressure
Hydro-Aire Aerospace Corp
1620-00-830-79995006 INTERCHANGEABLE
Axle,landing Gear
Goodrich Aerospace Canada Ltd
7050-00-998-1711 INTERCHANGEABLE
Vane Assembly
Cross-Reference Index
Part NumberManufacturer
50065 PRIMARY Hutchinson Industries, Inc Div Defense and Industry (USA)
3818436 Oshkosh Corp (USA)
Related Parts
5845-00-078-5659INTERCHANGEABLE
TRANSDUCER,SONAR
TR171BSQS
5310-00-269-6275INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
1832YA
5975-00-476-6234INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
500-65
5360-00-569-7194INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
50065
6130-00-578-0867INTERCHANGEABLE
POWER SUPPLY SUBASSEMBLY
3040-00-602-2767INTERCHANGEABLE
LEVER,MANUAL CONTROL
SM-C-426567
5310-00-638-9822INTERCHANGEABLE
WASHER,FLAT
35-17546Z
1650-00-698-6420INTERCHANGEABLE
VALVE ASSY,PRESSURE
50065
1620-00-830-7999INTERCHANGEABLE
AXLE,LANDING GEAR
5006
7050-00-998-1711INTERCHANGEABLE
VANE ASSEMBLY
4810-01-088-2596INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
50065
5310-01-160-9689INTERCHANGEABLE
LOCKNUT
50065

Frequently Asked Questions

What is NSN 5331-01-578-7394?

NSN 5331-01-578-7394 is a O-Ring, manufactured by Hutchinson Industries, Inc Div Defense and Industry, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-578-7394?

NSN 5331-01-578-7394 has 2 cross-referenced part numbers: 50065 (Hutchinson Industries, Inc Div Defense and Industry), 3818436 (Oshkosh Corp).

What NSN replaces 5331-01-578-7394?

There are 12 known substitutes for 5331-01-578-7394: 5845-00-078-5659, 5310-00-269-6275, 5975-00-476-6234 and 9 more. Verify interchangeability with system specifications before substitution.

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