PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500-637-12BWSeal,plain Encased

Vanseal Corp · NSN 5330-00-477-0533 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-477-0533 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-477-0533. Primary manufacturer part number: 500-637-12BW.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: RECESSED
  • Seal Width: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 4.995 INCHES MINIMUM AND 5.005 INCHES MAXIMUM IN
  • Housing Bore Diameter: 6.373 INCHES MINIMUM AND 6.377 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
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 5330-00-477-0533, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Vanseal Corp. Government technical data includes 8 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-477-0533
Primary Part Number500-637-12BW
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerVanseal Corp
StatusACTIVE
Case StyleRECESSED
Seal Width0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
Accommodated Shaft Diameter4.995 INCHES MINIMUM AND 5.005 INCHES MAXIMUM IN
Housing Bore Diameter6.373 INCHES MINIMUM AND 6.377 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
Temp Rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-050-0915 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
500-637-12BW John Crane, Inc (USA)
102945-1 Metadure Parts & Sales, Inc. (USA)
500-637-12BW PRIMARY Vanseal Corp (USA)
Related Parts
5962-01-050-0915INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5330-00-477-0533?

NSN 5330-00-477-0533 is a Seal,plain Encased, manufactured by Vanseal Corp, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-477-0533?

NSN 5330-00-477-0533 has 3 cross-referenced part numbers: 500-637-12BW (John Crane, Inc), 102945-1 (Metadure Parts & Sales, Inc.), 500-637-12BW (Vanseal Corp).

What NSN replaces 5330-00-477-0533?

There is 1 known substitute for 5330-00-477-0533: 5962-01-050-0915. Verify interchangeability with system specifications before substitution.

What are the specifications of 500-637-12BW?

Key specifications for 500-637-12BW: Case Style: RECESSED; Seal Width: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Sealing Element Style: ANGULAR. 8 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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