PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52451Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-154-8473 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-154-8473 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-154-8473. Primary manufacturer part number: 52451.
Features
  • Seal,plain Encased — FSC 5330
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Maximum Rated Speed: 1000 FEET PER MINUTE FT
  • Seal Width: 0.563 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Material: STEEL CASE
  • Housing Bore Diameter: 6.250 INCHES NOMINAL IN
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 5330-00-154-8473, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5330-00-154-8473
Primary Part Number52451
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Sealing Element StyleANGULAR
Accommodated Shaft Maximum Rated Speed1000 FEET PER MINUTE FT
Seal Width0.563 INCHES NOMINAL IN
Case StyleSQUARE
MaterialSTEEL CASE
Housing Bore Diameter6.250 INCHES NOMINAL IN
Accommodated Shaft Diameter3.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2590-00-141-9758 INTERCHANGEABLE
Cap,filler Opening
2805-00-163-382601727 INTERCHANGEABLE
Guide,valve
Safeguard Powertech Systems
5330-00-179-1916 INTERCHANGEABLE
Seal,plain Encased
5935-00-187-07002173112 INTERCHANGEABLE
Jack,tip
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6810-00-271-9265 INTERCHANGEABLE
Sodium Hydroxide
5330-00-298-0533287-1020ISSUE9PT3 INTERCHANGEABLE
Seal,plain
Raytheon Company Div Corp
5330-00-432-4820 INTERCHANGEABLE
Seal,plain
1650-00-486-187055448 INTERCHANGEABLE
Coupling,worm Wheel
Goodrich Corporation Dba Goodrich Corp
6125-00-553-00332158SL INTERCHANGEABLE
Motor-Generator
Dynalec Corporation
5950-00-624-2934N285158-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
3727 National Machinery Co (USA)
52451 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
55448 Federal-Mogul Corp Chassis Products Div (USA)
1370 PRIMARY Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
62558 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
2590-00-141-9758INTERCHANGEABLE
CAP,FILLER OPENING
2805-00-163-3826INTERCHANGEABLE
GUIDE,VALVE
01727
5330-00-179-1916INTERCHANGEABLE
SEAL,PLAIN ENCASED
5935-00-187-0700INTERCHANGEABLE
JACK,TIP
2173112
6810-00-271-9265INTERCHANGEABLE
SODIUM HYDROXIDE
5330-00-298-0533INTERCHANGEABLE
SEAL,PLAIN
287-1020ISSUE9PT3
5330-00-432-4820INTERCHANGEABLE
SEAL,PLAIN
1650-00-486-1870INTERCHANGEABLE
COUPLING,WORM WHEEL
55448
6125-00-553-0033INTERCHANGEABLE
MOTOR-GENERATOR
2158SL
5950-00-624-2934INTERCHANGEABLE
TRANSFORMER,POWER
N285158-1
5330-00-641-1648INTERCHANGEABLE
GASKET
37-27
8110-00-758-3727INTERCHANGEABLE
TUBE,DOCUMENT,SHIPPING AND STORA
TA475-1295

Frequently Asked Questions

What is NSN 5330-00-154-8473?

NSN 5330-00-154-8473 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-154-8473?

NSN 5330-00-154-8473 has 5 cross-referenced part numbers: 3727 (National Machinery Co), 52451 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 55448 (Federal-Mogul Corp Chassis Products Div), 1370 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 62558 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-154-8473?

There are 12 known substitutes for 5330-00-154-8473: 2590-00-141-9758, 2805-00-163-3826, 5330-00-179-1916 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 52451?

Key specifications for 52451: Material: RUBBER SYNTHETIC SEALING ELEMENT; Sealing Element Style: ANGULAR; Accommodated Shaft Maximum Rated Speed: 1000 FEET PER MINUTE FT; Seal Width: 0.563 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-154-8473 still in active supply?

NSN 5330-00-154-8473 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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