PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

912-4020-75-12Ring,wearing

Parker-Hannifin Corporation Div Integrated Sealing Systems Division · NSN 4320-01-373-2743 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-373-2743 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-373-2743. Primary manufacturer part number: 912-4020-75-12.
Features
  • Ring,wearing — FSC 4320
  • 4 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Div Integrated Sealing Systems Division
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-373-2743, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker-Hannifin Corporation Div Integrated Sealing Systems Division. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,wearing
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersAllied Systems Company Dba Allied Systems Co (CAGE 60848); Parker-Hannifin Corporation Div Integrated Sealing Systems Division (CAGE 58572)
Technical Specifications
ParameterValue
NSN4320-01-373-2743
Primary Part Number912-4020-75-12
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker-Hannifin Corporation Div Integrated Sealing Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-102-820935899 INTERCHANGEABLE
Reactor
Freed Transformer Co
6640-00-551-9805 INTERCHANGEABLE
Tubing,glass
5950-00-809-935035899 INTERCHANGEABLE
Reactor
L3harris Technologies, Inc. Div Space and Airborne Systems
2530-00-977-25932-D-3580 INTERCHANGEABLE
Piston,hydraulic Brake
Caterpillar Inc Div Caterpillar Defense
5985-01-119-94021061591 INTERCHANGEABLE
Waveguide Assembly
Frontgrade Technologies Inc.
3040-01-372-281635899 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Allied Systems Company Dba Allied Systems Co
2530-01-414-927135899 INTERCHANGEABLE
Pump Assembly,power Steering,veh
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
35899 Allied Systems Company Dba Allied Systems Co (USA)
234200 Allied Systems Company Dba Allied Systems Co (USA)
912-4020-75-12 PRIMARY Parker-Hannifin Corporation Div Integrated Sealing Systems Division (USA)
35899 ITEM 7 Allied Systems Company Dba Allied Systems Co (USA)
Related Parts
5950-00-102-8209INTERCHANGEABLE
REACTOR
35899
6640-00-551-9805INTERCHANGEABLE
TUBING,GLASS
5950-00-809-9350INTERCHANGEABLE
REACTOR
35899
2530-00-977-2593INTERCHANGEABLE
PISTON,HYDRAULIC BRAKE
2-D-3580
5985-01-119-9402INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
1061591
3040-01-372-2816INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
35899
2530-01-414-9271INTERCHANGEABLE
PUMP ASSEMBLY,POWER STEERING,VEH
35899

Frequently Asked Questions

What is NSN 4320-01-373-2743?

NSN 4320-01-373-2743 is a Ring,wearing, manufactured by Parker-Hannifin Corporation Div Integrated Sealing Systems Division, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-373-2743?

NSN 4320-01-373-2743 has 4 cross-referenced part numbers: 35899 (Allied Systems Company Dba Allied Systems Co), 234200 (Allied Systems Company Dba Allied Systems Co), 912-4020-75-12 (Parker-Hannifin Corporation Div Integrated Sealing Systems Division), 35899 ITEM 7 (Allied Systems Company Dba Allied Systems Co).

What NSN replaces 4320-01-373-2743?

There are 7 known substitutes for 4320-01-373-2743: 5950-00-102-8209, 6640-00-551-9805, 5950-00-809-9350 and 4 more. Verify interchangeability with system specifications before substitution.

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