PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21220Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-933-3588 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-933-3588 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-933-3588. Primary manufacturer part number: 21220.
Features
  • Seal,plain Encased — FSC 5330
  • Sealing Element Style: VERTICAL-ANGULAR
  • Material Document and Classification: MIL-S-45005,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT A
  • Housing Bore Diameter: 3.064 INCHES MINIMUM AND 3.068 INCHES MAXIMUM IN
  • Case Style: SQUARE
  • Accommodated Shaft Diameter: 2.125 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND STEEL SEALING ELEMENT A
  • Seal Width: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr and Steel Sealing Element a construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-933-3588, 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 17 commercial cross-references from 14 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
NSN5330-00-933-3588
Primary Part Number21220
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
Sealing Element StyleVERTICAL-ANGULAR
Material Document and ClassificationMIL-S-45005,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT A
Housing Bore Diameter3.064 INCHES MINIMUM AND 3.068 INCHES MAXIMUM IN
Case StyleSQUARE
Accommodated Shaft Diameter2.125 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND STEEL SEALING ELEMENT A
Seal Width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
Material Document and ClassificationMIL-S-45005,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT B
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND STEEL SEALING ELEMENT B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5930-00-001-320522C1239 INTERCHANGEABLE
Switch,flow
L3harris Maritime Power & Energy Solutions, Inc
2990-00-076-1829 INTERCHANGEABLE
Friction Shoe Assembly
5360-00-119-2002 INTERCHANGEABLE
Spring
3110-00-144-8671118994 INTERCHANGEABLE
Bearing,ball,annular
Komatsu America Corp.
3110-00-156-8049 INTERCHANGEABLE
Bearing,ball,annular
5999-00-223-418521220 INTERCHANGEABLE
Cap,electrical
Raytheon Company Dba Raytheon
5935-00-243-2864 INTERCHANGEABLE
Adapter,connector
5310-00-266-41400P711 INTERCHANGEABLE
Nut,plain,hexagon
Blaw-Knox Construction Equipment Co Div of White Consolidated Industries Inc
5133-00-266-9461 INTERCHANGEABLE
Drill,twist
4720-00-288-9875 INTERCHANGEABLE
Hose,nonmetallic
Cross-Reference Index
Part NumberManufacturer
TCAA 4676-A Zf Industrieantriebe Witten Gmbh (DEU)
30308 Federal-Mogul Corp Chassis Products Div (USA)
TCAA4676A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
124536R91 Navistar International Corporation Dba Navistar (USA)
124536R61 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
11171 Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA)
97871 New Venture Gear Inc New Process Gear Div (USA)
21220 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
90386 New Venture Gear Inc New Process Gear Div (USA)
5330009333588 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
943641 Am General Llc (USA)
11657684 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
410308 Federal-Mogul Corp Sealing Products Group Van Wert Plant (USA)
B3TZ7A011A Ford Motor Co Ford Parts and Service Div Industrial Engine Opns (USA)
948789 PRIMARY Am General Llc (USA)
410308 Federal-Mogul Corp Chassis Products Div (USA)
49733 Dana Automotive Systems Group, Llc Dba Dana Sealing Products (USA)
Related Parts
5930-00-001-3205INTERCHANGEABLE
SWITCH,FLOW
22C1239
2990-00-076-1829INTERCHANGEABLE
FRICTION SHOE ASSEMBLY
5360-00-119-2002INTERCHANGEABLE
SPRING
3110-00-144-8671INTERCHANGEABLE
BEARING,BALL,ANNULAR
118994
3110-00-156-8049INTERCHANGEABLE
BEARING,BALL,ANNULAR
5999-00-223-4185INTERCHANGEABLE
CAP,ELECTRICAL
21220
5935-00-243-2864INTERCHANGEABLE
ADAPTER,CONNECTOR
5310-00-266-4140INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0P711
5133-00-266-9461INTERCHANGEABLE
DRILL,TWIST
4720-00-288-9875INTERCHANGEABLE
HOSE,NONMETALLIC
3110-00-293-9228INTERCHANGEABLE
ROLLER,BEARING
10863050
5360-00-300-6114INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
300-9A

Frequently Asked Questions

What is NSN 5330-00-933-3588?

NSN 5330-00-933-3588 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 5330-00-933-3588?

NSN 5330-00-933-3588 has 17 cross-referenced part numbers: TCAA 4676-A (Zf Industrieantriebe Witten Gmbh), 30308 (Federal-Mogul Corp Chassis Products Div), TCAA4676A (Ford Motor Co Ford Parts and Service Div Government Part Sales), 124536R91 (Navistar International Corporation Dba Navistar), 124536R61 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/) and 12 more.

What NSN replaces 5330-00-933-3588?

There are 12 known substitutes for 5330-00-933-3588: 5930-00-001-3205, 2990-00-076-1829, 5360-00-119-2002 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21220?

Key specifications for 21220: Sealing Element Style: VERTICAL-ANGULAR; Material Document and Classification: MIL-S-45005,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT A; Housing Bore Diameter: 3.064 INCHES MINIMUM AND 3.068 INCHES MAXIMUM IN; Case Style: SQUARE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-933-3588 still in active supply?

NSN 5330-00-933-3588 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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