PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S250Seal,plain Encased

Thomson Industries Inc · NSN 5330-00-678-0214 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-678-0214 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-678-0214. Primary manufacturer part number: S250.
Features
  • Seal,plain Encased — FSC 5330
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Material: STEEL CASE
  • Seal Width: 0.125 INCHES NOMINAL IN
  • Case Style: RECESSED
  • Sealing Element Style: VERTICAL
  • Housing Bore Diameter: 0.504 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-678-0214, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-678-0214
Primary Part NumberS250
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerThomson Industries Inc
StatusCANCELLED
MaterialRUBBER SYNTHETIC SEALING ELEMENT
MaterialSTEEL CASE
Seal Width0.125 INCHES NOMINAL IN
Case StyleRECESSED
Sealing Element StyleVERTICAL
Housing Bore Diameter0.504 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-554-5302 INTERCHANGEABLE
Bearing,ball,annular
2990-00-678-58921T3354 INTERCHANGEABLE
Pipe,exhaust
Arvin Industries Inc
5935-00-940-7320S250 INTERCHANGEABLE
Plug,telephone
Switchcraft Inc.
7021-01-235-5937S250 INTERCHANGEABLE
Computer,digital
Data General Corporation
4730-01-289-1541 INTERCHANGEABLE
Adapter,straight,pipe to Hose
3460-01-353-8117S-250 INTERCHANGEABLE
Sleeve,expansion Mandrel
Sunnen Products Co
5895-01-506-6072S250 INTERCHANGEABLE
Modem,communications
Symmetricom Puerto Rico Inc
7035-01-539-3781S-250 INTERCHANGEABLE
Server,automatic Data Processing
Symmetricom, Inc
9150-01-583-8232 INTERCHANGEABLE
Calibrating Oil,standard
5895-01-587-9922S-250 INTERCHANGEABLE
S-250
Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic
Cross-Reference Index
Part NumberManufacturer
9062754 Us Army Aviation and Missile Command (USA)
S250 PRIMARY Thomson Industries Inc (USA)
Related Parts
3110-00-554-5302INTERCHANGEABLE
BEARING,BALL,ANNULAR
2990-00-678-5892INTERCHANGEABLE
PIPE,EXHAUST
1T3354
5935-00-940-7320INTERCHANGEABLE
PLUG,TELEPHONE
S250
7021-01-235-5937INTERCHANGEABLE
COMPUTER,DIGITAL
S250
4730-01-289-1541INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
3460-01-353-8117INTERCHANGEABLE
SLEEVE,EXPANSION MANDREL
S-250
5895-01-506-6072INTERCHANGEABLE
MODEM,COMMUNICATIONS
S250
7035-01-539-3781INTERCHANGEABLE
SERVER,AUTOMATIC DATA PROCESSING
S-250
9150-01-583-8232INTERCHANGEABLE
CALIBRATING OIL,STANDARD
5895-01-587-9922INTERCHANGEABLE
S-250
S-250
6645-01-618-1061INTERCHANGEABLE
CLOCK MOVEMENT,ELECTRIC
1520R-S250-OCXO
7050-01-642-9222INTERCHANGEABLE
MEMORY,PORTABLE,SOLID STATE
BASIC S250/16GB

Frequently Asked Questions

What is NSN 5330-00-678-0214?

NSN 5330-00-678-0214 is a Seal,plain Encased, manufactured by Thomson Industries Inc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-678-0214?

NSN 5330-00-678-0214 has 2 cross-referenced part numbers: 9062754 (Us Army Aviation and Missile Command), S250 (Thomson Industries Inc).

What NSN replaces 5330-00-678-0214?

There are 12 known substitutes for 5330-00-678-0214: 3110-00-554-5302, 2990-00-678-5892, 5935-00-940-7320 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S250?

Key specifications for S250: Material: RUBBER SYNTHETIC SEALING ELEMENT; Material: STEEL CASE; Seal Width: 0.125 INCHES NOMINAL IN; Case Style: RECESSED. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-678-0214 still in active supply?

NSN 5330-00-678-0214 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.
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