PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12009Seal,plain Encased

Cummins Power Generation Inc. · NSN 5330-00-178-5090 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-178-5090 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-178-5090. Primary manufacturer part number: 12009.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 2.686 INCHES NOMINAL IN
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 1.781 INCHES NOMINAL IN
  • Material: LEATHER SEALING ELEMENT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-178-5090, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Power Generation Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-178-5090
Primary Part Number12009
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCummins Power Generation Inc.
StatusCANCELLED
Housing Bore Diameter2.686 INCHES NOMINAL IN
Seal Width0.500 INCHES NOMINAL IN
Case StyleSQUARE
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
Accommodated Shaft Diameter1.781 INCHES NOMINAL IN
MaterialLEATHER SEALING ELEMENT
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5940-00-056-2960D142-58 INTERCHANGEABLE
Splice,conductor
Te Connectivity Corporation Dba Raychem Product Division
5180-00-075-254412009 INTERCHANGEABLE
Crimping Tool Kit,terminal Hand
Te Connectivity Corporation
6210-00-299-49814220K70P035 INTERCHANGEABLE
Light,indicator
Ametek Inc Div Aerospace and Defense
5310-00-602-626112009 INTERCHANGEABLE
Nut,plain,hexagon
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5355-00-720-5187 INTERCHANGEABLE
Dial,control
1650-00-723-579512009 INTERCHANGEABLE
Guide,spring Centering
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
1650-00-919-506212009 INTERCHANGEABLE
Seat,pressure Valve
Parker-Hannifin Corporation Dba Control Systems Division
4820-01-014-822350269 INTERCHANGEABLE
Valve,pilot High Level
Mission Systems Davenport Inc.
5120-01-140-0746 INTERCHANGEABLE
Wrench,ratchet
4730-01-373-019912009 INTERCHANGEABLE
Packing Nut
Imi Cash Valve Inc
Cross-Reference Index
Part NumberManufacturer
12009 Cummins Power Generation Inc. (USA)
5330-202000 Chief of Engineers Dept of Army (USA)
268125 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
570 Cummins Power Generation Inc. (USA)
509P58 Cummins Power Generation Inc. (USA)
50269 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
5940-00-056-2960INTERCHANGEABLE
SPLICE,CONDUCTOR
D142-58
5180-00-075-2544INTERCHANGEABLE
CRIMPING TOOL KIT,TERMINAL HAND
12009
6210-00-299-4981INTERCHANGEABLE
LIGHT,INDICATOR
4220K70P035
5310-00-602-6261INTERCHANGEABLE
NUT,PLAIN,HEXAGON
12009
5355-00-720-5187INTERCHANGEABLE
DIAL,CONTROL
1650-00-723-5795INTERCHANGEABLE
GUIDE,SPRING CENTERING
12009
1650-00-919-5062INTERCHANGEABLE
SEAT,PRESSURE VALVE
12009
4820-01-014-8223INTERCHANGEABLE
VALVE,PILOT HIGH LEVEL
50269
5120-01-140-0746INTERCHANGEABLE
WRENCH,RATCHET
4730-01-373-0199INTERCHANGEABLE
PACKING NUT
12009
5950-01-462-8103INTERCHANGEABLE
COIL ASSEMBLY,ELECTRICAL
12-009

Frequently Asked Questions

What is NSN 5330-00-178-5090?

NSN 5330-00-178-5090 is a Seal,plain Encased, manufactured by Cummins Power Generation Inc., classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-178-5090?

NSN 5330-00-178-5090 has 6 cross-referenced part numbers: 12009 (Cummins Power Generation Inc.), 5330-202000 (Chief of Engineers Dept of Army), 268125 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 570 (Cummins Power Generation Inc.), 509P58 (Cummins Power Generation Inc.) and 1 more.

What NSN replaces 5330-00-178-5090?

There are 11 known substitutes for 5330-00-178-5090: 5940-00-056-2960, 5180-00-075-2544, 6210-00-299-4981 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12009?

Key specifications for 12009: Housing Bore Diameter: 2.686 INCHES NOMINAL IN; Seal Width: 0.500 INCHES NOMINAL IN; Case Style: SQUARE; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-178-5090 still in active supply?

NSN 5330-00-178-5090 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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