PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55491Cover,bearing Retainer

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 1650-00-788-8912 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-788-8912 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-788-8912. Primary manufacturer part number: 55491.
Features
  • Cover,bearing Retainer — FSC 1650
  • FSC Application Data: AIRCRAFT HYDRAULIC SYSTEM
  • General Characteristics Item Description: ALUMINUM ALLOY QQ&A&268&T4,1.970 IN. LG,1.937 IN. W IN
  • 1 verified cross-reference
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Cover,bearing Retainer, cataloged under National Stock Number 1650-00-788-8912, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 2 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-788-8912
Primary Part Number55491
Item NameCover,bearing Retainer
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
FSC Application DataAIRCRAFT HYDRAULIC SYSTEM
General Characteristics Item DescriptionALUMINUM ALLOY QQ&A&268&T4,1.970 IN. LG,1.937 IN. W IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
1005-01-631-6710102261 INTERCHANGEABLE
Chute Section,ammunition
Naval Surface Warfare Center Dahlgren Div
Cross-Reference Index
Part NumberManufacturer
55491 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
1005-01-631-6710INTERCHANGEABLE
CHUTE SECTION,AMMUNITION
102261

Frequently Asked Questions

What is NSN 1650-00-788-8912?

NSN 1650-00-788-8912 is a Cover,bearing Retainer, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-788-8912?

NSN 1650-00-788-8912 has 1 cross-referenced part number: 55491 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 1650-00-788-8912?

There is 1 known substitute for 1650-00-788-8912: 1005-01-631-6710. Verify interchangeability with system specifications before substitution.

What are the specifications of 55491?

Key specifications for 55491: FSC Application Data: AIRCRAFT HYDRAULIC SYSTEM; General Characteristics Item Description: ALUMINUM ALLOY QQ&A&268&T4,1.970 IN. LG,1.937 IN. W IN. 2 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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