PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28748Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-01-424-3363 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-424-3363 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-424-3363. Primary manufacturer part number: 28748.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 3.875 INCHES NOMINAL IN
  • Case Style: RECESSED
  • Accommodated Shaft Diameter: 2.875 INCHES NOMINAL IN
  • Seal Width: 0.438 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR-OPPOSED
  • Surface Treatment: PLASTIC CASE
  • Material: RUBBER FLUOROCARBON CLASS FPM OVERALL
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm Overall construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-424-3363, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-424-3363
Primary Part Number28748
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Housing Bore Diameter3.875 INCHES NOMINAL IN
Case StyleRECESSED
Accommodated Shaft Diameter2.875 INCHES NOMINAL IN
Seal Width0.438 INCHES NOMINAL IN
Sealing Element StyleANGULAR-OPPOSED
Surface TreatmentPLASTIC CASE
MaterialRUBBER FLUOROCARBON CLASS FPM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-783-9650 INTERCHANGEABLE
Coil Assembly,radio Frequency
3040-01-292-3653 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
4310-01-533-416828748 INTERCHANGEABLE
Head,valve
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
871-698-040 Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA)
871-698-040 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand (USA)
28748 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
5950-00-783-9650INTERCHANGEABLE
COIL ASSEMBLY,RADIO FREQUENCY
3040-01-292-3653INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
4310-01-533-4168INTERCHANGEABLE
HEAD,VALVE
28748

Frequently Asked Questions

What is NSN 5330-01-424-3363?

NSN 5330-01-424-3363 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-424-3363?

NSN 5330-01-424-3363 has 3 cross-referenced part numbers: 871-698-040 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 871-698-040 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand), 28748 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-01-424-3363?

There are 3 known substitutes for 5330-01-424-3363: 5950-00-783-9650, 3040-01-292-3653, 4310-01-533-4168. Verify interchangeability with system specifications before substitution.

What are the specifications of 28748?

Key specifications for 28748: Housing Bore Diameter: 3.875 INCHES NOMINAL IN; Case Style: RECESSED; Accommodated Shaft Diameter: 2.875 INCHES NOMINAL IN; Seal Width: 0.438 INCHES NOMINAL IN. 7 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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