PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21731Retainer,seal

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 5330-01-485-2162 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-485-2162 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-485-2162. Primary manufacturer part number: 21731.
Features
  • Retainer,seal — FSC 5330
  • Reference Data and Literature: T.O. 9H4-2-107-3,FIG 8-1
  • Style Designator: FLANGED
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Bolt Hole Diameter: 0.203 INCHES NOMINAL IN
  • Aperture Diameter: 1.800 INCHES NOMINAL IN
  • Body Outside Diameter: 2.175 INCHES NOMINAL IN
  • Mounting Flange Length: 2.875 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Retainer,seal, cataloged under National Stock Number 5330-01-485-2162, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-485-2162
Primary Part Number21731
Item NameRetainer,seal
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Reference Data and LiteratureT.O. 9H4-2-107-3,FIG 8-1
Style DesignatorFLANGED
MaterialALUMINUM ALLOY 6061 OVERALL
Bolt Hole Diameter0.203 INCHES NOMINAL IN
Aperture Diameter1.800 INCHES NOMINAL IN
Body Outside Diameter2.175 INCHES NOMINAL IN
Mounting Flange Length2.875 INCHES NOMINAL IN
Mounting Flange Width2.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5130-00-312-614121731 INTERCHANGEABLE
Bit,screwdriver
Black and Decker Us Inc
6625-00-487-7535 INTERCHANGEABLE
Magnet Assy,cadmium
2930-00-938-1594180128 INTERCHANGEABLE
Pump,cooling System,engine
Cummins Inc.
5998-01-100-1519 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
21731 Abex Nwl Aerospace (USA)
21731 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
21731 Parker-Hannifin Corporation Dba Control Systems Division (USA)
Related Parts
5130-00-312-6141INTERCHANGEABLE
BIT,SCREWDRIVER
21731
6625-00-487-7535INTERCHANGEABLE
MAGNET ASSY,CADMIUM
2930-00-938-1594INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
180128
5998-01-100-1519INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY

Frequently Asked Questions

What is NSN 5330-01-485-2162?

NSN 5330-01-485-2162 is a Retainer,seal, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-485-2162?

NSN 5330-01-485-2162 has 3 cross-referenced part numbers: 21731 (Abex Nwl Aerospace), 21731 (Parker Hannifin Corporation Div Hydraulic Systems Division), 21731 (Parker-Hannifin Corporation Dba Control Systems Division).

What NSN replaces 5330-01-485-2162?

There are 4 known substitutes for 5330-01-485-2162: 5130-00-312-6141, 6625-00-487-7535, 2930-00-938-1594 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21731?

Key specifications for 21731: Reference Data and Literature: T.O. 9H4-2-107-3,FIG 8-1; End Item Identification: C-5 AIRCRAFT; Special Features: 0-RING GLAND PER AS568-136; Style Designator: FLANGED. 10 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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