PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26721Retainer,spring

Parker-Hannifin Corporation Dba Control Systems Division · NSN 1620-00-821-4458 · FSC 1620 · No Item Name Available
Verified by PartsTable
NSN 1620-00-821-4458 — this item is cataloged by the U.S. Government under National Stock Number 1620-00-821-4458. Primary manufacturer part number: 26721.
Features
  • Retainer,spring — FSC 1620
  • 2 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Control Systems Division
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Retainer,spring, cataloged under National Stock Number 1620-00-821-4458, is classified within Federal Supply Class 1620 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Control Systems Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRetainer,spring
FSC / FSG1620 — No Item Name Available (FSG 16)
ManufacturersParker-Hannifin Corporation Dba Control Systems Division (CAGE 82106); Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (CAGE 59211)
Technical Specifications
ParameterValue
NSN1620-00-821-4458
Primary Part Number26721
Item NameRetainer,spring
FSC / FSG1620 / 16 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Control Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-156-48171575-77 INTERCHANGEABLE
Bearing,ball,annular
Sioux Tools Inc
5310-00-360-758162177V INTERCHANGEABLE
Washer,flat
Navistar Intl Corp Truck Br Ohio Plant
4320-01-365-2584 INTERCHANGEABLE
Parts Kit,hydraulic Pump
6515-01-386-1669ZV-181E10 INTERCHANGEABLE
Electrode Paste,electromedical a
Nihon Kohden America, Llc
Cross-Reference Index
Part NumberManufacturer
26721 PRIMARY Parker-Hannifin Corporation Dba Control Systems Division (USA)
26721 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
Related Parts
3110-00-156-4817INTERCHANGEABLE
BEARING,BALL,ANNULAR
1575-77
5310-00-360-7581INTERCHANGEABLE
WASHER,FLAT
62177V
4320-01-365-2584INTERCHANGEABLE
PARTS KIT,HYDRAULIC PUMP
6515-01-386-1669INTERCHANGEABLE
ELECTRODE PASTE,ELECTROMEDICAL A
ZV-181E10

Frequently Asked Questions

What is NSN 1620-00-821-4458?

NSN 1620-00-821-4458 is a Retainer,spring, manufactured by Parker-Hannifin Corporation Dba Control Systems Division, classified under FSC 1620 (No Item Name Available). Status: active.

What are the part numbers for NSN 1620-00-821-4458?

NSN 1620-00-821-4458 has 2 cross-referenced part numbers: 26721 (Parker-Hannifin Corporation Dba Control Systems Division), 26721 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations).

What NSN replaces 1620-00-821-4458?

There are 4 known substitutes for 1620-00-821-4458: 3110-00-156-4817, 5310-00-360-7581, 4320-01-365-2584 and 1 more. Verify interchangeability with system specifications before substitution.

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