PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5121Seal,plain Encased

Federal-Mogul Corp Government Sales Dept · NSN 5330-01-141-3941 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-141-3941 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-141-3941. Primary manufacturer part number: 5121.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 2.621 INCHES NOMINAL IN
  • Outside Diameter: 2.626 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Temp Rating: 200.0 FAHRENHEIT DEGF
  • Sealing Element Style: ANGULAR-OPPOSED
  • Type/model Designation: HMA8
  • Surface Treatment: PLASTIC CASE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene Nitrile Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-141-3941, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal-Mogul Corp Government Sales Dept. Government technical data includes 10 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-01-141-3941
Primary Part Number5121
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerFederal-Mogul Corp Government Sales Dept
StatusCANCELLED
Housing Bore Diameter2.621 INCHES NOMINAL IN
Outside Diameter2.626 INCHES NOMINAL IN
Case StyleSQUARE
Temp Rating200.0 FAHRENHEIT DEGF
Sealing Element StyleANGULAR-OPPOSED
Type/model DesignationHMA8
Surface TreatmentPLASTIC CASE
MaterialRUBBER BUTADIENE NITRILE SEALING ELEMENT
Accommodated Shaft Diameter1.938 INCHES NOMINAL IN
Seal Width0.570 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
2920-00-051-956719500 INTERCHANGEABLE
Switch,float
Setra Systems, Inc. Dba Gems Sensors
6210-00-284-0289 INTERCHANGEABLE
Light,indicator
6515-00-343-860019-500 INTERCHANGEABLE
Knife,ear
Integra Lifesciences Corporation
5930-01-191-96781950-0 INTERCHANGEABLE
Switch,pressure
Dwyer Instruments Inc
3694-01-240-463019500 INTERCHANGEABLE
Blower,static Eliminating
Charleswater Products Inc
7350-01-256-109119500 INTERCHANGEABLE
Bowl,eating
Babco International Inc
4810-01-424-4981AD-1P INTERCHANGEABLE
Parts Kit,valve
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
6140-01-489-052019500 INTERCHANGEABLE
Battery,storage
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
4610-01-633-066119500 INTERCHANGEABLE
Water Purification Unit,skid Mou
Parker Hannifin Corporation Div Village Marine Tech
Cross-Reference Index
Part NumberManufacturer
5121 Federal-Mogul Corp Government Sales Dept (USA)
19500 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
2920-00-051-9567INTERCHANGEABLE
SWITCH,FLOAT
19500
6210-00-284-0289INTERCHANGEABLE
LIGHT,INDICATOR
6515-00-343-8600INTERCHANGEABLE
KNIFE,EAR
19-500
5930-01-191-9678INTERCHANGEABLE
SWITCH,PRESSURE
1950-0
3694-01-240-4630INTERCHANGEABLE
BLOWER,STATIC ELIMINATING
19500
7350-01-256-1091INTERCHANGEABLE
BOWL,EATING
19500
4810-01-424-4981INTERCHANGEABLE
PARTS KIT,VALVE
AD-1P
6140-01-489-0520INTERCHANGEABLE
BATTERY,STORAGE
19500
4610-01-633-0661INTERCHANGEABLE
WATER PURIFICATION UNIT,SKID MOU
19500

Frequently Asked Questions

What is NSN 5330-01-141-3941?

NSN 5330-01-141-3941 is a Seal,plain Encased, manufactured by Federal-Mogul Corp Government Sales Dept, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-01-141-3941?

NSN 5330-01-141-3941 has 2 cross-referenced part numbers: 5121 (Federal-Mogul Corp Government Sales Dept), 19500 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-01-141-3941?

There are 9 known substitutes for 5330-01-141-3941: 2920-00-051-9567, 6210-00-284-0289, 6515-00-343-8600 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5121?

Key specifications for 5121: Special Features: 2000 RPM RPM; Housing Bore Diameter: 2.621 INCHES NOMINAL IN; Outside Diameter: 2.626 INCHES NOMINAL IN; Case Style: SQUARE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-01-141-3941 still in active supply?

NSN 5330-01-141-3941 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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