PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12342961Seal,plain Encased

Norman Technology, Inc. Dba Nti Seals · NSN 5330-01-203-6551 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-203-6551 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-203-6551. Primary manufacturer part number: 12342961.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 3.500 INCHES MINIMUM AND 3.502 INCHES MAXIMUM IN
  • Sealing Element Style: VERTICAL-ANGULAR
  • Seal Width: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
  • Housing Bore Diameter: 4.248 INCHES MINIMUM AND 4.251 INCHES MAXIMUM IN
  • Case Style: SQUARE
  • Temp Rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
  • Material: STEEL CASE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-203-6551, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Norman Technology, Inc. Dba Nti Seals. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-01-203-6551
Primary Part Number12342961
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNorman Technology, Inc. Dba Nti Seals
StatusCANCELLED
Accommodated Shaft Diameter3.500 INCHES MINIMUM AND 3.502 INCHES MAXIMUM IN
Sealing Element StyleVERTICAL-ANGULAR
Seal Width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
Housing Bore Diameter4.248 INCHES MINIMUM AND 4.251 INCHES MAXIMUM IN
Case StyleSQUARE
Temp Rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
3110-00-120-43381269682 INTERCHANGEABLE
Roller,bearing
Chrysler Realty Company Llc Dba Daimler Chrysler
3040-00-341-98311234296-1 INTERCHANGEABLE
Gearshaft,spur
Honeywell International Inc. Dba Honeywell International
3830-00-496-77731981 INTERCHANGEABLE
Hose Assy,rubber
New Holland Construction
5325-01-099-6090SM-B-447175-4 INTERCHANGEABLE
Eyelet,metallic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4920-01-487-83631981 INTERCHANGEABLE
Test Station,pneumatic System Co
Avitest Llc
4240-01-565-54691981 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
2540-01-583-189882251111 INTERCHANGEABLE
Armor,supplemental,small Arms-Fr
Foster-Miller, Inc. Dba Qinetiq North America
5120-01-650-5693 INTERCHANGEABLE
Socket,socket Wrench
5340-01-721-05171981 INTERCHANGEABLE
Boot,dust and Moisture Seal
Masimo Corporation
6675-01-733-4441198-1 INTERCHANGEABLE
Trivet,surveying Instrument
Brunson Instrument Company Dba Brunson Instrument Co
Cross-Reference Index
Part NumberManufacturer
CR535094-60 Zf Industrieantriebe Witten Gmbh (DEU)
CR 535094-60 Precision Seals Inc (USA)
12342961 Mistral Inc (USA)
12342961 V O K Oil Seals South Ltd (ISR)
10010489 Brighton Cromwell Llc (USA)
29940-2094 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
12342961 PRIMARY Norman Technology, Inc. Dba Nti Seals (USA)
12342961 V O K Oil Seals South Ltd (ISR)
5330PL0643850 Jednolity Indeks Materialowy - Uniform Material Index (POL)
29940-2094 Precision Seals Inc (USA)
5330012036551 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
CR 535094-60 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
12342961 Ergoseal, Inc (USA)
1981 Norman Technology, Inc. Dba Nti Seals (USA)
1981 Ergoseal, Inc (USA)
12342961 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
3110-00-120-4338INTERCHANGEABLE
ROLLER,BEARING
1269682
3040-00-341-9831INTERCHANGEABLE
GEARSHAFT,SPUR
1234296-1
3830-00-496-7773INTERCHANGEABLE
HOSE ASSY,RUBBER
1981
5325-01-099-6090INTERCHANGEABLE
EYELET,METALLIC
SM-B-447175-4
4920-01-487-8363INTERCHANGEABLE
TEST STATION,PNEUMATIC SYSTEM CO
1981
4240-01-565-5469INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
1981
2540-01-583-1898INTERCHANGEABLE
ARMOR,SUPPLEMENTAL,SMALL ARMS-FR
82251111
5120-01-650-5693INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5340-01-721-0517INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
1981
6675-01-733-4441INTERCHANGEABLE
TRIVET,SURVEYING INSTRUMENT
198-1

Frequently Asked Questions

What is NSN 5330-01-203-6551?

NSN 5330-01-203-6551 is a Seal,plain Encased, manufactured by Norman Technology, Inc. Dba Nti Seals, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-01-203-6551?

NSN 5330-01-203-6551 has 16 cross-referenced part numbers: CR535094-60 (Zf Industrieantriebe Witten Gmbh), CR 535094-60 (Precision Seals Inc), 12342961 (Mistral Inc), 12342961 (V O K Oil Seals South Ltd), 10010489 (Brighton Cromwell Llc) and 11 more.

What NSN replaces 5330-01-203-6551?

There are 10 known substitutes for 5330-01-203-6551: 3110-00-120-4338, 3040-00-341-9831, 3830-00-496-7773 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12342961?

Key specifications for 12342961: Accommodated Shaft Diameter: 3.500 INCHES MINIMUM AND 3.502 INCHES MAXIMUM IN; Sealing Element Style: VERTICAL-ANGULAR; Seal Width: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN; Housing Bore Diameter: 4.248 INCHES MINIMUM AND 4.251 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-01-203-6551 still in active supply?

NSN 5330-01-203-6551 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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