PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9000-121O-Ring

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 5331-01-382-8952 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-382-8952 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-382-8952. Primary manufacturer part number: 9000-121.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-382-8952, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. This item has 2 commercial cross-references from 2 manufacturers, 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)
ManufacturersParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (CAGE 09990); Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division (CAGE 02249)
Technical Specifications
ParameterValue
NSN5331-01-382-8952
Primary Part Number9000-121
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5962-00-365-8353 INTERCHANGEABLE
Microcircuit,digital
6665-01-654-8504900-0121 INTERCHANGEABLE
Alarm-Monitor Group
Kidde Fire Fighting Inc Div Angus Flexline Imperial Fire Hose
Cross-Reference Index
Part NumberManufacturer
9000-121 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
9000-121 Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division (USA)
Related Parts
5962-00-365-8353INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6665-01-654-8504INTERCHANGEABLE
ALARM-MONITOR GROUP
900-0121

Frequently Asked Questions

What is NSN 5331-01-382-8952?

NSN 5331-01-382-8952 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-382-8952?

NSN 5331-01-382-8952 has 2 cross-referenced part numbers: 9000-121 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 9000-121 (Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division).

What NSN replaces 5331-01-382-8952?

There are 2 known substitutes for 5331-01-382-8952: 5962-00-365-8353, 6665-01-654-8504. Verify interchangeability with system specifications before substitution.

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