PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55630Seal Assembly

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-00-868-7446 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-868-7446 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-868-7446. Primary manufacturer part number: 55630.
Features
  • Seal Assembly — FSC 4320
  • General Characteristics Item Description: SEAL-1
  • General Characteristics Item Description: RETAINER SEAL AND BEARING-1
  • General Characteristics Item Description: SEAL AND RETAINER SUB-ASSEMBLY CONSISTING OF THREE /3/ ITEMS
  • General Characteristics Item Description: 0-RING-1
  • 1 verified cross-reference
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal Assembly, cataloged under National Stock Number 4320-00-868-7446, 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. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-868-7446
Primary Part Number55630
Item NameSeal Assembly
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusCANCELLED
General Characteristics Item DescriptionSEAL-1
General Characteristics Item DescriptionRETAINER SEAL AND BEARING-1
General Characteristics Item DescriptionSEAL AND RETAINER SUB-ASSEMBLY CONSISTING OF THREE /3/ ITEMS
General Characteristics Item Description0-RING-1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
1420-00-672-2052 INTERCHANGEABLE
Time Coordinate Ass
6685-00-985-50074 1-2 1DP1-4BM300 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
Cross-Reference Index
Part NumberManufacturer
55630 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
1420-00-672-2052INTERCHANGEABLE
TIME COORDINATE ASS
6685-00-985-5007INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
4 1-2 1DP1-4BM300

Frequently Asked Questions

What is NSN 4320-00-868-7446?

NSN 4320-00-868-7446 is a Seal Assembly, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-868-7446?

NSN 4320-00-868-7446 has 1 cross-referenced part number: 55630 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 4320-00-868-7446?

There are 2 known substitutes for 4320-00-868-7446: 1420-00-672-2052, 6685-00-985-5007. Verify interchangeability with system specifications before substitution.

What are the specifications of 55630?

Key specifications for 55630: General Characteristics Item Description: SEAL-1; General Characteristics Item Description: RETAINER SEAL AND BEARING-1; General Characteristics Item Description: SEAL AND RETAINER SUB-ASSEMBLY CONSISTING OF THREE /3/ ITEMS; General Characteristics Item Description: 0-RING-1. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-868-7446 still in active supply?

NSN 4320-00-868-7446 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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