PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

509-86Seal,plain Encased

Cummins Power Generation Inc. · NSN 5330-00-950-8407 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-950-8407 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-950-8407. Primary manufacturer part number: 509-86.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: RECESSED
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Attachment Method: CEMENTED
  • Accommodated Shaft Diameter: 1.938 INCHES NOMINAL IN
  • Sealing Element Style: VERTICAL
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Housing Bore Diameter: 2.750 INCHES NOMINAL IN
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 5330-00-950-8407, 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 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: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-950-8407
Primary Part Number509-86
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCummins Power Generation Inc.
StatusCANCELLED
Case StyleRECESSED
Seal Width0.500 INCHES NOMINAL IN
Attachment MethodCEMENTED
Accommodated Shaft Diameter1.938 INCHES NOMINAL IN
Sealing Element StyleVERTICAL
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Housing Bore Diameter2.750 INCHES NOMINAL IN
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
1730-00-026-455052229 INTERCHANGEABLE
Pin,warning Streamer
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
3455-00-232-9047 INTERCHANGEABLE
Cutter,milling,side
5950-00-946-268150986 INTERCHANGEABLE
Transformer,power
Magnetika Inc Div Magnetika/phillipsburg Location
2815-00-963-3546 INTERCHANGEABLE
Nuts,lock,piston Ro
6685-01-693-495952229 INTERCHANGEABLE
Thermometer,self-Indicating,digi
Mastercool Inc
Cross-Reference Index
Part NumberManufacturer
509-86 PRIMARY Cummins Power Generation Inc. (USA)
2815009508407 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
52229 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
MILE11276 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
509-0086 PRIMARY Cummins Power Generation Inc. (USA)
Related Parts
1730-00-026-4550INTERCHANGEABLE
PIN,WARNING STREAMER
52229
3455-00-232-9047INTERCHANGEABLE
CUTTER,MILLING,SIDE
5950-00-946-2681INTERCHANGEABLE
TRANSFORMER,POWER
50986
2815-00-963-3546INTERCHANGEABLE
NUTS,LOCK,PISTON RO
6685-01-693-4959INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,DIGI
52229

Frequently Asked Questions

What is NSN 5330-00-950-8407?

NSN 5330-00-950-8407 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 5330-00-950-8407?

NSN 5330-00-950-8407 has 5 cross-referenced part numbers: 509-86 (Cummins Power Generation Inc.), 2815009508407 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 52229 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), MILE11276 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 509-0086 (Cummins Power Generation Inc.).

What NSN replaces 5330-00-950-8407?

There are 5 known substitutes for 5330-00-950-8407: 1730-00-026-4550, 3455-00-232-9047, 5950-00-946-2681 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 509-86?

Key specifications for 509-86: Case Style: RECESSED; Seal Width: 0.500 INCHES NOMINAL IN; Attachment Method: CEMENTED; Accommodated Shaft Diameter: 1.938 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-950-8407 still in active supply?

NSN 5330-00-950-8407 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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