PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66534Cap,port

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-01-181-9257 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-181-9257 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-181-9257. Primary manufacturer part number: 66534.
Features
  • Cap,port — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Cap,port, cataloged under National Stock Number 4320-01-181-9257, 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 Hydraulic Systems Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-181-9257
Primary Part Number66534
Item NameCap,port
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-434-6396247608 INTERCHANGEABLE
Insert,tube Fitting
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4010-00-813-4279539720-0007 INTERCHANGEABLE
Guy
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5998-01-647-349066534 INTERCHANGEABLE
Electronic Components Assembly
Electro Optical Industries Inc
Cross-Reference Index
Part NumberManufacturer
66534 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
66534 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
Related Parts
4730-00-434-6396INTERCHANGEABLE
INSERT,TUBE FITTING
247608
4010-00-813-4279INTERCHANGEABLE
GUY
539720-0007
5998-01-647-3490INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
66534

Frequently Asked Questions

What is NSN 4320-01-181-9257?

NSN 4320-01-181-9257 is a Cap,port, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-181-9257?

NSN 4320-01-181-9257 has 2 cross-referenced part numbers: 66534 (Parker Hannifin Corporation Div Hydraulic Systems Division), 66534 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations).

What NSN replaces 4320-01-181-9257?

There are 3 known substitutes for 4320-01-181-9257: 4730-00-434-6396, 4010-00-813-4279, 5998-01-647-3490. Verify interchangeability with system specifications before substitution.

What are the specifications of 66534?

Key specifications for 66534: End Item Identification: AH-64 AIRFRAME, ROTARY WING AIRCRAFT. 1 total characteristics are documented in the Federal Logistics Information System.

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