PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11309Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-01-021-1904 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-021-1904 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-021-1904. Primary manufacturer part number: 11309.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.438 INCHES NOMINAL IN
  • Housing Bore Diameter: 1.983 INCHES NOMINAL IN
  • Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
  • Case Style: SQUARE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Material: STEEL CASE
  • Sealing Element Style: ANGULAR
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 5330-01-021-1904, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-021-1904
Primary Part Number11309
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Seal Width0.438 INCHES NOMINAL IN
Housing Bore Diameter1.983 INCHES NOMINAL IN
Temp Rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Case StyleSQUARE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
MaterialSTEEL CASE
Sealing Element StyleANGULAR
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Accommodated Shaft Diameter1.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4320-00-335-931111309 INTERCHANGEABLE
Rotor,pump
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
2520-00-358-930711309 INTERCHANGEABLE
Shaft W Joints
Meritor Heavy Vehicle Systems, Llc
5950-00-440-0376 INTERCHANGEABLE
Transformer,power
3110-00-554-328810090 INTERCHANGEABLE
Bearing,ball,annular
Wausau Equipment Company Llc Dba Schmidt Engineering & Equipment Inc Div Wausau Equipment Llc
9150-01-085-2453011-00309 INTERCHANGEABLE
Lubricating Oil,hydraulic
Johnson Controls Navy Systems, Llc
4540-01-273-5778976315 INTERCHANGEABLE
Parts Kit,garbage Disposal
Somat Company
5340-01-496-056311309 INTERCHANGEABLE
Kit,doorstop
Bennett Industries, Inc
Cross-Reference Index
Part NumberManufacturer
11309 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
720-2402053 PIECE 45 Naval Ship Systems Command (USA)
Related Parts
4320-00-335-9311INTERCHANGEABLE
ROTOR,PUMP
11309
2520-00-358-9307INTERCHANGEABLE
SHAFT W JOINTS
11309
5950-00-440-0376INTERCHANGEABLE
TRANSFORMER,POWER
3110-00-554-3288INTERCHANGEABLE
BEARING,BALL,ANNULAR
10090
9150-01-085-2453INTERCHANGEABLE
LUBRICATING OIL,HYDRAULIC
011-00309
4540-01-273-5778INTERCHANGEABLE
PARTS KIT,GARBAGE DISPOSAL
976315
5340-01-496-0563INTERCHANGEABLE
KIT,DOORSTOP
11309

Frequently Asked Questions

What is NSN 5330-01-021-1904?

NSN 5330-01-021-1904 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-021-1904?

NSN 5330-01-021-1904 has 3 cross-referenced part numbers: 11309 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 720-2402053 PIECE 45 (Naval Ship Systems Command).

What NSN replaces 5330-01-021-1904?

There are 7 known substitutes for 5330-01-021-1904: 4320-00-335-9311, 2520-00-358-9307, 5950-00-440-0376 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11309?

Key specifications for 11309: Seal Width: 0.438 INCHES NOMINAL IN; Housing Bore Diameter: 1.983 INCHES NOMINAL IN; Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF; Case Style: SQUARE. 9 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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