PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

688658Seal,plain Encased

Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division · NSN 5330-01-180-5937 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-180-5937 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-180-5937. Primary manufacturer part number: 688658.
Features
  • Seal,plain Encased — FSC 5330
  • Sealing Element Style: VERTICAL
  • Case Style: SQUARE
  • Material: RUBBER NATURAL SEALING ELEMENT
  • Accommodated Shaft Diameter: 0.490 INCHES NOMINAL IN
  • Housing Bore Diameter: 0.812 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
  • Material Document and Classification: V1854-75 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Natural Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-180-5937, 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 Dba Pneutronics Div Composite Sealing Systems Division. Government technical data includes 11 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-180-5937
Primary Part Number688658
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
StatusACTIVE
Sealing Element StyleVERTICAL
Case StyleSQUARE
MaterialRUBBER NATURAL SEALING ELEMENT
Accommodated Shaft Diameter0.490 INCHES NOMINAL IN
Housing Bore Diameter0.812 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationV1854-75 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
Material Document and ClassificationQQ-S-698 MIL SPEC SINGLE MATERIAL RESPONSE INNER RING
Seal Width0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
MaterialSTEEL COMP 1020 AND STEEL COMP 1030 INNER RING
Surface Treatment Document and ClassificationQQ-P-416 CLASS II,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6680-00-823-566655-238 INTERCHANGEABLE
Plate,indicator
Transicoil Llc Dba Ads Transicoil Div Transicoil
5998-00-991-9984688658-01 INTERCHANGEABLE
Circuit Card Assembly
Cae Usa Inc.
2910-01-038-73724293803 INTERCHANGEABLE
Pump,fuel,cam Actuated
Chrysler Corp Service and Parts Opns
6105-01-113-876755238 INTERCHANGEABLE
Motor,stepping
Stingray56 Inc.
5935-01-200-8289943949-19 INTERCHANGEABLE
Plate,retaining,electrical Conne
Raytheon Company Dba Raytheon
5306-01-424-5796 INTERCHANGEABLE
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
55238 Hamilton Sundstrand Corporation (USA)
688658 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
Related Parts
6680-00-823-5666INTERCHANGEABLE
PLATE,INDICATOR
55-238
5998-00-991-9984INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
688658-01
2910-01-038-7372INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
4293803
6105-01-113-8767INTERCHANGEABLE
MOTOR,STEPPING
55238
5935-01-200-8289INTERCHANGEABLE
PLATE,RETAINING,ELECTRICAL CONNE
943949-19
5306-01-424-5796INTERCHANGEABLE
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5330-01-180-5937?

NSN 5330-01-180-5937 is a Seal,plain Encased, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-180-5937?

NSN 5330-01-180-5937 has 2 cross-referenced part numbers: 55238 (Hamilton Sundstrand Corporation), 688658 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division).

What NSN replaces 5330-01-180-5937?

There are 6 known substitutes for 5330-01-180-5937: 6680-00-823-5666, 5998-00-991-9984, 2910-01-038-7372 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 688658?

Key specifications for 688658: Sealing Element Style: VERTICAL; Case Style: SQUARE; Material: RUBBER NATURAL SEALING ELEMENT; Accommodated Shaft Diameter: 0.490 INCHES NOMINAL IN. 12 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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