PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19640Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-01-287-6634 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-287-6634 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-287-6634. Primary manufacturer part number: 19640.
Features
  • Seal,plain Encased — FSC 5330
  • Outside Diameter: 72.2 MILLIMETERS NOMINAL MM
  • Housing Bore Diameter: 75.000 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
  • Material: STEEL CORROSION RESISTING SPRING
  • Accommodated Shaft Diameter: 50.000 INCHES NOMINAL IN
  • Sealing Element Style: VERTICAL
  • Seal Width: 8.000 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-287-6634, 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 10 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: Active.

Technical Specifications
ParameterValue
NSN5330-01-287-6634
Primary Part Number19640
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Outside Diameter72.2 MILLIMETERS NOMINAL MM
Housing Bore Diameter75.000 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MaterialSTEEL CORROSION RESISTING SPRING
Accommodated Shaft Diameter50.000 INCHES NOMINAL IN
Sealing Element StyleVERTICAL
Seal Width8.000 INCHES NOMINAL IN
MaterialSTEEL CASE
Case StyleSQUARE
Surface TreatmentPLASTIC CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6640-00-360-001881-9800 INTERCHANGEABLE
Tongs,laboratory
J & H Berge, Inc. Dba Lab Mart, the Div the Labmart
4720-00-451-796219640 INTERCHANGEABLE
Hose,air Duct
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
3455-01-130-245819640 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5180-01-437-7895 INTERCHANGEABLE
Tool Kit,general Mechanic's
2990-01-546-986019640 INTERCHANGEABLE
Blanket,exhaust
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
F104569 ITEM-O Palfinger Marine Usa, Llc (USA)
19640 Zf Industrieantriebe Witten Gmbh (DEU)
CR19640 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
F104569 ITEM-O Harding-Watercraft Inc (USA)
19640 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
6640-00-360-0018INTERCHANGEABLE
TONGS,LABORATORY
81-9800
4720-00-451-7962INTERCHANGEABLE
HOSE,AIR DUCT
19640
3455-01-130-2458INTERCHANGEABLE
REAMER,MACHINE
19640
5180-01-437-7895INTERCHANGEABLE
TOOL KIT,GENERAL MECHANIC'S
2990-01-546-9860INTERCHANGEABLE
BLANKET,EXHAUST
19640

Frequently Asked Questions

What is NSN 5330-01-287-6634?

NSN 5330-01-287-6634 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 5330-01-287-6634?

NSN 5330-01-287-6634 has 5 cross-referenced part numbers: F104569 ITEM-O (Palfinger Marine Usa, Llc), 19640 (Zf Industrieantriebe Witten Gmbh), CR19640 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), F104569 ITEM-O (Harding-Watercraft Inc), 19640 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-01-287-6634?

There are 5 known substitutes for 5330-01-287-6634: 6640-00-360-0018, 4720-00-451-7962, 3455-01-130-2458 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19640?

Key specifications for 19640: Outside Diameter: 72.2 MILLIMETERS NOMINAL MM; Housing Bore Diameter: 75.000 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT; Material: STEEL CORROSION RESISTING SPRING. 10 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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