PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1280858Seal,plain Encased

Naval Ship Systems Command · NSN 5330-00-154-0559 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-154-0559 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-154-0559. Primary manufacturer part number: 1280858.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Seal Width: 0.375 INCHES NOMINAL IN
  • Housing Bore Diameter: 1.375 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 0.875 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-154-0559, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-154-0559
Primary Part Number1280858
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusCANCELLED
Case StyleSQUARE
Seal Width0.375 INCHES NOMINAL IN
Housing Bore Diameter1.375 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Accommodated Shaft Diameter0.875 INCHES NOMINAL IN
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-117-567712528 INTERCHANGEABLE
Caster,rigid
Aerol Llc
3020-00-135-4911 INTERCHANGEABLE
Link,roller Chain
5133-00-247-2751 INTERCHANGEABLE
Drill,twist
5330-00-285-6385125-28 INTERCHANGEABLE
Seal,plain Encased
Dresser Industries Inc Leroi Div
5330-00-408-3216 INTERCHANGEABLE
Gasket
6530-00-410-2889125-28 INTERCHANGEABLE
Cover,mattress,orth
Stryker Corporation Div Use for Open Payments Only
4930-00-430-317247069 INTERCHANGEABLE
Coupling,lubrication
Alemite, Llc Dba Skf Usa Inc.
4310-00-431-1652 INTERCHANGEABLE
Retainer,spring
5305-00-622-9476 INTERCHANGEABLE
Screw,machine
3610-00-794-223312528 INTERCHANGEABLE
Screw,carrier Loop
Smyth Mfg Co Sub of the Beacon Group
Cross-Reference Index
Part NumberManufacturer
12528 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
1280858 PRIMARY Naval Ship Systems Command (USA)
12528 Bomag Usa Sub of United Dominion Industries Ltd (USA)
68666 Mitsubishi Caterpillar Forklift America, Inc (USA)
21158-0214 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
17DH430BB Rivinius Inc Littleford Machinery Div (USA)
47069 Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5340-00-117-5677INTERCHANGEABLE
CASTER,RIGID
12528
3020-00-135-4911INTERCHANGEABLE
LINK,ROLLER CHAIN
5133-00-247-2751INTERCHANGEABLE
DRILL,TWIST
5330-00-285-6385INTERCHANGEABLE
SEAL,PLAIN ENCASED
125-28
5330-00-408-3216INTERCHANGEABLE
GASKET
6530-00-410-2889INTERCHANGEABLE
COVER,MATTRESS,ORTH
125-28
4930-00-430-3172INTERCHANGEABLE
COUPLING,LUBRICATION
47069
4310-00-431-1652INTERCHANGEABLE
RETAINER,SPRING
5305-00-622-9476INTERCHANGEABLE
SCREW,MACHINE
3610-00-794-2233INTERCHANGEABLE
SCREW,CARRIER LOOP
12528
5330-01-396-8142INTERCHANGEABLE
GASKET
5340-01-498-6277INTERCHANGEABLE
FITTING,QD,FEMALE

Frequently Asked Questions

What is NSN 5330-00-154-0559?

NSN 5330-00-154-0559 is a Seal,plain Encased, manufactured by Naval Ship Systems Command, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-154-0559?

NSN 5330-00-154-0559 has 7 cross-referenced part numbers: 12528 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 1280858 (Naval Ship Systems Command), 12528 (Bomag Usa Sub of United Dominion Industries Ltd), 68666 (Mitsubishi Caterpillar Forklift America, Inc), 21158-0214 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc) and 2 more.

What NSN replaces 5330-00-154-0559?

There are 12 known substitutes for 5330-00-154-0559: 5340-00-117-5677, 3020-00-135-4911, 5133-00-247-2751 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1280858?

Key specifications for 1280858: Case Style: SQUARE; Seal Width: 0.375 INCHES NOMINAL IN; Housing Bore Diameter: 1.375 INCHES NOMINAL IN; Sealing Element Style: ANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-154-0559 still in active supply?

NSN 5330-00-154-0559 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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