PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S2500Seal,plain Encased

Thomson Industries Inc · NSN 5330-00-618-3207 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-618-3207 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-618-3207. Primary manufacturer part number: S2500.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 2.500 INCHES NOMINAL IN
  • Seal Width: 0.375 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Housing Bore Diameter: 3.756 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Case Style: SQUARE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
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 5330-00-618-3207, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Thomson Industries Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5330-00-618-3207
Primary Part NumberS2500
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerThomson Industries Inc
StatusACTIVE
Accommodated Shaft Diameter2.500 INCHES NOMINAL IN
Seal Width0.375 INCHES NOMINAL IN
MaterialSTEEL CASE
Housing Bore Diameter3.756 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Case StyleSQUARE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4210-00-394-3209S2500 INTERCHANGEABLE
Nozzle Assembly,monitor Type,fir
Tyco Fire Products Lp
4240-01-132-1750S2500 INTERCHANGEABLE
Goggles,industrial
Honeywell Safety Products Usa, Inc.
9150-01-583-8351 INTERCHANGEABLE
Calibrating Oil,standard
Cross-Reference Index
Part NumberManufacturer
S2500 PRIMARY Thomson Industries Inc (USA)
Related Parts
4210-00-394-3209INTERCHANGEABLE
NOZZLE ASSEMBLY,MONITOR TYPE,FIR
S2500
4240-01-132-1750INTERCHANGEABLE
GOGGLES,INDUSTRIAL
S2500
9150-01-583-8351INTERCHANGEABLE
CALIBRATING OIL,STANDARD

Frequently Asked Questions

What is NSN 5330-00-618-3207?

NSN 5330-00-618-3207 is a Seal,plain Encased, manufactured by Thomson Industries Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-618-3207?

NSN 5330-00-618-3207 has 1 cross-referenced part number: S2500 (Thomson Industries Inc).

What NSN replaces 5330-00-618-3207?

There are 3 known substitutes for 5330-00-618-3207: 4210-00-394-3209, 4240-01-132-1750, 9150-01-583-8351. Verify interchangeability with system specifications before substitution.

What are the specifications of S2500?

Key specifications for S2500: Accommodated Shaft Diameter: 2.500 INCHES NOMINAL IN; Seal Width: 0.375 INCHES NOMINAL IN; Material: STEEL CASE; Housing Bore Diameter: 3.756 INCHES NOMINAL IN. 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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