PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SKA1561Seal,plain Encased

Brunswick Corp Dba Mercury Marine Div Mercury Marine · NSN 5330-00-291-2349 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-291-2349 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-291-2349. Primary manufacturer part number: SKA1561.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 1.828 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 0.969 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Seal Width: 0.437 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Case Style: SQUARE
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 5330-00-291-2349, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brunswick Corp Dba Mercury Marine Div Mercury Marine. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN5330-00-291-2349
Primary Part NumberSKA1561
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerBrunswick Corp Dba Mercury Marine Div Mercury Marine
StatusACTIVE
Housing Bore Diameter1.828 INCHES NOMINAL IN
Accommodated Shaft Diameter0.969 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Seal Width0.437 INCHES NOMINAL IN
MaterialSTEEL CASE
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Case StyleSQUARE
Sealing Element StyleANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4520-00-274-582043186 INTERCHANGEABLE
Pipe,air Conditioning-Heating
L3harris Technologies, Inc Div Space & Airborne Systems
5310-00-283-1782P272 INTERCHANGEABLE
Washer
B & G Equipment Company
5935-00-371-937810257-1 INTERCHANGEABLE
Polarizing Key,electrical Connec
Alliant Techsystems Operations Llc Div Defense Electronic Systems
5930-00-548-6782D7-272 INTERCHANGEABLE
Detent,switch
Electro Switch Corp. Dba Electro Switch Corp
2940-00-728-75092532752 INTERCHANGEABLE
Filter Element,fluid
Chrysler Corp Service and Parts Opns
5120-00-785-46441833-1 INTERCHANGEABLE
Cumalong,conductor
Cooper Power Systems, Inc. Dba Cooper Power Systems, Inc.
2805-00-876-46812510 INTERCHANGEABLE
Piston,internal Combustion Engin
Federal-Mogul Corp Government Sales Dept
5998-00-883-9084 INTERCHANGEABLE
Electronic Components Assembly
5950-00-910-0025P27-158-01 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
1630-00-925-8550183-31 INTERCHANGEABLE
Retainer,wheel,landing
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
SKA1561 PRIMARY Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
18331 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
60239 PRIMARY Dana Automotive Systems Group, Llc Dba Dana Sealing Products (USA)
43-186 Federal-Mogul Corp Sealing Products Group Van Wert Plant (USA)
P272 PRIMARY Elgin Sweeper Company (USA)
50040-5S Federal-Mogul Corp Chassis Products Div (USA)
18331S1RVENE Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
43-186 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
4520-00-274-5820INTERCHANGEABLE
PIPE,AIR CONDITIONING-HEATING
43186
5310-00-283-1782INTERCHANGEABLE
WASHER
P272
5935-00-371-9378INTERCHANGEABLE
POLARIZING KEY,ELECTRICAL CONNEC
10257-1
5930-00-548-6782INTERCHANGEABLE
DETENT,SWITCH
D7-272
2940-00-728-7509INTERCHANGEABLE
FILTER ELEMENT,FLUID
2532752
5120-00-785-4644INTERCHANGEABLE
CUMALONG,CONDUCTOR
1833-1
2805-00-876-4681INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
2510
5998-00-883-9084INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5950-00-910-0025INTERCHANGEABLE
TRANSFORMER,POWER
P27-158-01
1630-00-925-8550INTERCHANGEABLE
RETAINER,WHEEL,LANDING
183-31
5133-01-083-9295INTERCHANGEABLE
DRILL,TWIST
2940-01-131-5928INTERCHANGEABLE
FILTER ELEMENT,FLUID
3302026

Frequently Asked Questions

What is NSN 5330-00-291-2349?

NSN 5330-00-291-2349 is a Seal,plain Encased, manufactured by Brunswick Corp Dba Mercury Marine Div Mercury Marine, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-291-2349?

NSN 5330-00-291-2349 has 8 cross-referenced part numbers: SKA1561 (Brunswick Corp Dba Mercury Marine Div Mercury Marine), 18331 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 60239 (Dana Automotive Systems Group, Llc Dba Dana Sealing Products), 43-186 (Federal-Mogul Corp Sealing Products Group Van Wert Plant), P272 (Elgin Sweeper Company) and 3 more.

What NSN replaces 5330-00-291-2349?

There are 12 known substitutes for 5330-00-291-2349: 4520-00-274-5820, 5310-00-283-1782, 5935-00-371-9378 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SKA1561?

Key specifications for SKA1561: Housing Bore Diameter: 1.828 INCHES NOMINAL IN; Accommodated Shaft Diameter: 0.969 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC SEALING ELEMENT; Seal Width: 0.437 INCHES NOMINAL IN. 8 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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