PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51248Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-641-3091 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-641-3091 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-641-3091. Primary manufacturer part number: 51248.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Seal Width: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
  • Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
  • Accommodated Shaft Diameter: 5.125 INCHES NOMINAL IN
  • Outside Diameter: 6.381 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Case Style: SQUARE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather or Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-641-3091, 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 8 commercial cross-references from 5 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
NSN5330-00-641-3091
Primary Part Number51248
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Seal Width0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
MaterialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
Accommodated Shaft Diameter5.125 INCHES NOMINAL IN
Outside Diameter6.381 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Case StyleSQUARE
Housing Bore Diameter6.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4330-00-001-3514313117C92 INTERCHANGEABLE
Filter Element,fluid
Navistar Intl Corp Truck Br Ohio Plant
5995-00-057-83457136015 INTERCHANGEABLE
Cord Assembly,electrical
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5998-00-163-9603 INTERCHANGEABLE
Electronic Components Assembly
5325-00-175-1315 INTERCHANGEABLE
Ring,retaining
5330-00-298-0388 INTERCHANGEABLE
Seal,plain Encased
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
9540-00-540-6023277515 INTERCHANGEABLE
Beam,structural
Aluminum Co of America
2540-00-564-907015591703 INTERCHANGEABLE
Arm,windshield Wiper
General Motors Llc Dba General Motors Llc
2805-00-907-275851250 INTERCHANGEABLE
Deflector,dirt and Liquid
Waterous Company
4520-01-093-2470 INTERCHANGEABLE
Heating Element,electrical,nonim
Cross-Reference Index
Part NumberManufacturer
51248 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
55071 Ohio Auto Parts Co (USA)
51250 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
55071 Federal-Mogul Corp Chassis Products Div (USA)
55071S26 Federal-Mogul Corp Chassis Products Div (USA)
55071 Osgood Co the (USA)
63854 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
4330-00-001-3514INTERCHANGEABLE
FILTER ELEMENT,FLUID
313117C92
5995-00-057-8345INTERCHANGEABLE
CORD ASSEMBLY,ELECTRICAL
7136015
5998-00-163-9603INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5325-00-175-1315INTERCHANGEABLE
RING,RETAINING
5330-00-298-0388INTERCHANGEABLE
SEAL,PLAIN ENCASED
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
9540-00-540-6023INTERCHANGEABLE
BEAM,STRUCTURAL
277515
2540-00-564-9070INTERCHANGEABLE
ARM,WINDSHIELD WIPER
15591703
2805-00-907-2758INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
51250
4520-01-093-2470INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5995-01-332-1743INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
G284347-128
5305-01-590-8495INTERCHANGEABLE
SCREW,MACHINE
51-250

Frequently Asked Questions

What is NSN 5330-00-641-3091?

NSN 5330-00-641-3091 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 5330-00-641-3091?

NSN 5330-00-641-3091 has 8 cross-referenced part numbers: 51248 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 55071 (Ohio Auto Parts Co), 51250 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 55071 (Federal-Mogul Corp Chassis Products Div) and 3 more.

What NSN replaces 5330-00-641-3091?

There are 12 known substitutes for 5330-00-641-3091: 4330-00-001-3514, 5995-00-057-8345, 5998-00-163-9603 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51248?

Key specifications for 51248: Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Seal Width: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN; Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT; Accommodated Shaft Diameter: 5.125 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-641-3091 still in active supply?

NSN 5330-00-641-3091 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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