PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250120Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-291-9643 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-291-9643 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-291-9643. Primary manufacturer part number: 250120.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
  • Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
  • Accommodated Shaft Diameter: 1.625 INCHES NOMINAL IN
  • Housing Bore Diameter: 2.502 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Case Style: SQUARE
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather or Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-9643, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-291-9643
Primary Part Number250120
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
Seal Width0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
MaterialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
Accommodated Shaft Diameter1.625 INCHES NOMINAL IN
Housing Bore Diameter2.502 INCHES NOMINAL IN
MaterialSTEEL CASE
Case StyleSQUARE
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-287-441950194 INTERCHANGEABLE
Valve,plug
R & M Energy Systems Tomball P
5999-00-860-9634250120 INTERCHANGEABLE
Delay Line
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5950-00-902-7735 INTERCHANGEABLE
Coil,radio Frequency
5360-00-981-016750-194 INTERCHANGEABLE
Spring,helical,torsion
Motorola Solutions Danmark A/s
4730-00-999-963625-0120 INTERCHANGEABLE
Coupling,pipe
Opw Fueling Components Inc. Div Opw Fueling Components
4820-01-039-36262-200055M1 INTERCHANGEABLE
Valve,check
Parker Hannifin Corporation Div Aerospace Group Headquarters
6210-01-054-222550194 INTERCHANGEABLE
Lens Assembly
L3 Technologies, Inc. Div L3 Keo
5315-01-213-7073N50194 INTERCHANGEABLE
Pin,straight,headed
Leslie Controls, Inc. Dba Leslie Controls Inc
4810-01-219-656350194 INTERCHANGEABLE
Seat,valve
Jetstream of Houston, Llp Dba Jetstream of Houston Llp
5305-01-394-0316 INTERCHANGEABLE
Thumbscrew
Cross-Reference Index
Part NumberManufacturer
250120 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
50194 Federal-Mogul Corp Chassis Products Div (USA)
50194S Federal-Mogul Corp Chassis Products Div (USA)
S16149 PRIMARY Cummins Inc. (USA)
JT3005 White Farm Equipment Co Sub of Tic Investment Inc (USA)
Related Parts
4820-00-287-4419INTERCHANGEABLE
VALVE,PLUG
50194
5999-00-860-9634INTERCHANGEABLE
DELAY LINE
250120
5950-00-902-7735INTERCHANGEABLE
COIL,RADIO FREQUENCY
5360-00-981-0167INTERCHANGEABLE
SPRING,HELICAL,TORSION
50-194
4730-00-999-9636INTERCHANGEABLE
COUPLING,PIPE
25-0120
4820-01-039-3626INTERCHANGEABLE
VALVE,CHECK
2-200055M1
6210-01-054-2225INTERCHANGEABLE
LENS ASSEMBLY
50194
5315-01-213-7073INTERCHANGEABLE
PIN,STRAIGHT,HEADED
N50194
4810-01-219-6563INTERCHANGEABLE
SEAT,VALVE
50194
5305-01-394-0316INTERCHANGEABLE
THUMBSCREW
4470-01-466-0671INTERCHANGEABLE
THREADED BUSHING
5315-01-595-1314INTERCHANGEABLE
PIN,SPRING
50194

Frequently Asked Questions

What is NSN 5330-00-291-9643?

NSN 5330-00-291-9643 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-291-9643?

NSN 5330-00-291-9643 has 5 cross-referenced part numbers: 250120 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 50194 (Federal-Mogul Corp Chassis Products Div), 50194S (Federal-Mogul Corp Chassis Products Div), S16149 (Cummins Inc.), JT3005 (White Farm Equipment Co Sub of Tic Investment Inc).

What NSN replaces 5330-00-291-9643?

There are 12 known substitutes for 5330-00-291-9643: 4820-00-287-4419, 5999-00-860-9634, 5950-00-902-7735 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 250120?

Key specifications for 250120: Seal Width: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN; Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT; Accommodated Shaft Diameter: 1.625 INCHES NOMINAL IN; Housing Bore Diameter: 2.502 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-291-9643 still in active supply?

NSN 5330-00-291-9643 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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