PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28121Seal,plain Encased

Vickers Inc · NSN 5330-00-420-5796 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-420-5796 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-420-5796. Primary manufacturer part number: 28121.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Seal Width: 0.250 INCHES NOMINAL IN
  • Housing Bore Diameter: 0.999 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT A
  • Material: RUBBER SYNTHETIC SEALING ELEMENT B
  • Material: STEEL CASE
  • Temp Rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Sealing Element a construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-420-5796, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Vickers Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-420-5796
Primary Part Number28121
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerVickers Inc
StatusACTIVE
Case StyleSQUARE
Seal Width0.250 INCHES NOMINAL IN
Housing Bore Diameter0.999 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT A
MaterialRUBBER SYNTHETIC SEALING ELEMENT B
MaterialSTEEL CASE
Temp Rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Accommodated Shaft Maximum Rated Speed3500 FEET PER MINUTE FT
Accommodated Shaft Diameter0.500 INCHES NOMINAL IN
Sealing Element StyleVERTICAL-ANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-225-912228121 INTERCHANGEABLE
Packing Assembly
Cnh Industrial America Llc Dba Cnh America
3455-00-476-0840TABLE 48.D3/8IN INTERCHANGEABLE
Cutter,milling,end
The American Society of Mechanical Engineers
4820-01-014-3335D16200 INTERCHANGEABLE
Valve,safety Relief
Dante Valve Company
2940-01-158-146246723 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5955-01-198-787528-12-1 INTERCHANGEABLE
Crystal Unit,quartz
Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled
4940-01-411-487628-121 INTERCHANGEABLE
Table,positioning
Itw Industrial Finishing Dba Binks Devilbiss
5305-01-424-770328121 INTERCHANGEABLE
Screw,machine
Fastenal Company Div Bind
5930-01-682-714128121 INTERCHANGEABLE
Switch Assembly
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
28121 Vickers Inc (USA)
Related Parts
5330-00-225-9122INTERCHANGEABLE
PACKING ASSEMBLY
28121
3455-00-476-0840INTERCHANGEABLE
CUTTER,MILLING,END
TABLE 48.D3/8IN
4820-01-014-3335INTERCHANGEABLE
VALVE,SAFETY RELIEF
D16200
2940-01-158-1462INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
46723
5955-01-198-7875INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
28-12-1
4940-01-411-4876INTERCHANGEABLE
TABLE,POSITIONING
28-121
5305-01-424-7703INTERCHANGEABLE
SCREW,MACHINE
28121
5930-01-682-7141INTERCHANGEABLE
SWITCH ASSEMBLY
28121

Frequently Asked Questions

What is NSN 5330-00-420-5796?

NSN 5330-00-420-5796 is a Seal,plain Encased, manufactured by Vickers Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-420-5796?

NSN 5330-00-420-5796 has 1 cross-referenced part number: 28121 (Vickers Inc).

What NSN replaces 5330-00-420-5796?

There are 8 known substitutes for 5330-00-420-5796: 5330-00-225-9122, 3455-00-476-0840, 4820-01-014-3335 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28121?

Key specifications for 28121: Case Style: SQUARE; Seal Width: 0.250 INCHES NOMINAL IN; Housing Bore Diameter: 0.999 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC SEALING ELEMENT A. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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