PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321504Seal,plain Encased

Brp Us Inc · NSN 5330-00-057-6914 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-057-6914 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-057-6914. Primary manufacturer part number: 321504.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 1.125 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Housing Bore Diameter: 1.561 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Seal Width: 0.313 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING CASE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-057-6914, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brp Us Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-057-6914
Primary Part Number321504
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerBrp Us Inc
StatusCANCELLED
Accommodated Shaft Diameter1.125 INCHES NOMINAL IN
Case StyleSQUARE
Housing Bore Diameter1.561 INCHES NOMINAL IN
Sealing Element StyleANGULAR
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Seal Width0.313 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4820-00-602-44351111-545032 INTERCHANGEABLE
Valve,check
Parker Hannifin Corporation Div Aerospace Group Headquarters
5940-01-035-508536840 INTERCHANGEABLE
Splice,conductor
Te Connectivity Corporation
3020-01-096-0730 INTERCHANGEABLE
Chain,leaf
2920-01-443-0938321-504 INTERCHANGEABLE
Generator,engine Accessory
Delco Remy America Inc
Cross-Reference Index
Part NumberManufacturer
308500 Brp Us Inc (USA)
308500 Outboard Marine Corp Johnson Motors Div (USA)
321504 PRIMARY Brp Us Inc (USA)
321504 Outboard Marine Corp (USA)
308500 Evinrude Motors Product Group of Outboard Marine Corp (USA)
321504 Zf Industrieantriebe Witten Gmbh (DEU)
308500 Outboard Marine Corp (USA)
321504 Evinrude Motors Product Group of Outboard Marine Corp (USA)
Related Parts
4820-00-602-4435INTERCHANGEABLE
VALVE,CHECK
1111-545032
5940-01-035-5085INTERCHANGEABLE
SPLICE,CONDUCTOR
36840
3020-01-096-0730INTERCHANGEABLE
CHAIN,LEAF
2920-01-443-0938INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
321-504

Frequently Asked Questions

What is NSN 5330-00-057-6914?

NSN 5330-00-057-6914 is a Seal,plain Encased, manufactured by Brp Us Inc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-057-6914?

NSN 5330-00-057-6914 has 8 cross-referenced part numbers: 308500 (Brp Us Inc), 308500 (Outboard Marine Corp Johnson Motors Div), 321504 (Brp Us Inc), 321504 (Outboard Marine Corp), 308500 (Evinrude Motors Product Group of Outboard Marine Corp) and 3 more.

What NSN replaces 5330-00-057-6914?

There are 4 known substitutes for 5330-00-057-6914: 4820-00-602-4435, 5940-01-035-5085, 3020-01-096-0730 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 321504?

Key specifications for 321504: Accommodated Shaft Diameter: 1.125 INCHES NOMINAL IN; Case Style: SQUARE; Housing Bore Diameter: 1.561 INCHES NOMINAL IN; Sealing Element Style: ANGULAR. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-057-6914 still in active supply?

NSN 5330-00-057-6914 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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