PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51248Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-298-0388 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-298-0388 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-298-0388. Primary manufacturer part number: 51248.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 6.383 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Outside Diameter: 6.381 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Material: STEEL CASE
  • Accommodated Shaft Diameter: 5.125 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
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 5330-00-298-0388, 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 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-298-0388
Primary Part Number51248
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
Housing Bore Diameter6.383 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Outside Diameter6.381 INCHES NOMINAL IN
Case StyleSQUARE
MaterialSTEEL CASE
Accommodated Shaft Diameter5.125 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Seal Width0.625 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5330-00-641-309151248 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
2940-00-860-9850103522 INTERCHANGEABLE
Filter Element,fluid
Allianz Sweeper Company
6515-01-287-645751251 INTERCHANGEABLE
Forceps,biopsy,abdomen
Olympus America Inc
2590-01-670-07605125-1 INTERCHANGEABLE
Pad,cushioning
Tru-Hitch, Inc.
Cross-Reference Index
Part NumberManufacturer
51248 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
5184576 General Motors Corp (USA)
51251 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
5184576 Rolls-Royce Solutions America Inc (USA)
Related Parts
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
5330-00-641-3091INTERCHANGEABLE
SEAL,PLAIN ENCASED
51248
2940-00-860-9850INTERCHANGEABLE
FILTER ELEMENT,FLUID
103522
6515-01-287-6457INTERCHANGEABLE
FORCEPS,BIOPSY,ABDOMEN
51251
2590-01-670-0760INTERCHANGEABLE
PAD,CUSHIONING
5125-1

Frequently Asked Questions

What is NSN 5330-00-298-0388?

NSN 5330-00-298-0388 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 5330-00-298-0388?

NSN 5330-00-298-0388 has 5 cross-referenced part numbers: 51248 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 5184576 (General Motors Corp), 51251 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 5184576 (Rolls-Royce Solutions America Inc).

What NSN replaces 5330-00-298-0388?

There are 5 known substitutes for 5330-00-298-0388: 3110-00-516-5289, 5330-00-641-3091, 2940-00-860-9850 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51248?

Key specifications for 51248: Housing Bore Diameter: 6.383 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Outside Diameter: 6.381 INCHES NOMINAL IN; Case Style: SQUARE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-298-0388 still in active supply?

NSN 5330-00-298-0388 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.
PartsTable Design LLC · partstable.com