PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221Grommet,nonmetallic

Parker-Hannifin Corporation Div O-Ring Division · NSN 5325-00-721-5235 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-721-5235 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-721-5235. Primary manufacturer part number: 221.
Features
  • Grommet,nonmetallic — FSC 5325
  • Large Flange Outside Diameter: 0.594 INCHES NOMINAL IN
  • Groove Outside Diameter: 0.438 INCHES NOMINAL IN
  • Groove Width: 0.063 INCHES NOMINAL IN
  • Grommet Construction Type: SOLID
  • Flange Thickness: 0.062 INCHES NOMINAL IN
  • Grommet Style: ROUND
  • Hole Diameter: 0.313 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Natural Overall construction
General Description

The Grommet,nonmetallic, cataloged under National Stock Number 5325-00-721-5235, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Div O-Ring Division. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-721-5235
Primary Part Number221
Item NameGrommet,nonmetallic
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Div O-Ring Division
StatusACTIVE
Large Flange Outside Diameter0.594 INCHES NOMINAL IN
Groove Outside Diameter0.438 INCHES NOMINAL IN
Groove Width0.063 INCHES NOMINAL IN
Grommet Construction TypeSOLID
Flange Thickness0.062 INCHES NOMINAL IN
Grommet StyleROUND
Hole Diameter0.313 INCHES NOMINAL IN
MaterialRUBBER NATURAL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2990-00-004-8351T-8165 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5310-00-448-14098165 INTERCHANGEABLE
Washer,spring Tension
Telemechanics Inc
4310-00-465-10908165 INTERCHANGEABLE
Ring Set,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
3895-00-758-97107700086 INTERCHANGEABLE
Tank,distributor Bituminous
Ed Etnyre & Co
4140-00-774-85148165 INTERCHANGEABLE
Impeller,fan,centrifugal
Way Wolff Associates Inc
4730-00-834-5456 INTERCHANGEABLE
Adapter,straight,tube to Hose
5960-00-958-9146 INTERCHANGEABLE
Electron Tube
5930-00-982-7682 INTERCHANGEABLE
Switch,rotary
5998-01-005-75168165 INTERCHANGEABLE
Circuit Card Assembly
Electrac Space Electronics Laboratory Inc Vibration Instruments Co Div
5935-01-011-7658 INTERCHANGEABLE
Connector,plug,electrical
Cross-Reference Index
Part NumberManufacturer
8165 Cessna Aircraft Co Arc Avionics Div (USA)
221 PRIMARY Parker-Hannifin Corporation Div O-Ring Division (USA)
Related Parts
2990-00-004-8351INTERCHANGEABLE
MUFFLER,EXHAUST
T-8165
5310-00-448-1409INTERCHANGEABLE
WASHER,SPRING TENSION
8165
4310-00-465-1090INTERCHANGEABLE
RING SET,PISTON
8165
3895-00-758-9710INTERCHANGEABLE
TANK,DISTRIBUTOR BITUMINOUS
7700086
4140-00-774-8514INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
8165
4730-00-834-5456INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
5960-00-958-9146INTERCHANGEABLE
ELECTRON TUBE
5930-00-982-7682INTERCHANGEABLE
SWITCH,ROTARY
5998-01-005-7516INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
8165
5935-01-011-7658INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2590-01-024-9737INTERCHANGEABLE
CAP,FILLER OPENING
3441-01-038-1751INTERCHANGEABLE
UPPER BEAM,JAW
756020285

Frequently Asked Questions

What is NSN 5325-00-721-5235?

NSN 5325-00-721-5235 is a Grommet,nonmetallic, manufactured by Parker-Hannifin Corporation Div O-Ring Division, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-721-5235?

NSN 5325-00-721-5235 has 2 cross-referenced part numbers: 8165 (Cessna Aircraft Co Arc Avionics Div), 221 (Parker-Hannifin Corporation Div O-Ring Division).

What NSN replaces 5325-00-721-5235?

There are 12 known substitutes for 5325-00-721-5235: 2990-00-004-8351, 5310-00-448-1409, 4310-00-465-1090 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 221?

Key specifications for 221: Large Flange Outside Diameter: 0.594 INCHES NOMINAL IN; Groove Outside Diameter: 0.438 INCHES NOMINAL IN; Groove Width: 0.063 INCHES NOMINAL IN; Grommet Construction Type: SOLID. 9 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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