PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50551Seal,plain Encased

Federal-Mogul Corp Government Sales Dept · NSN 5330-00-737-2612 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-737-2612 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-737-2612. Primary manufacturer part number: 50551.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Housing Bore Diameter: 3.125 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Maximum Rated Speed: 2600 FEET PER MINUTE FT
  • Material: STEEL CASE
  • Accommodated Shaft Diameter: 2.312 INCHES NOMINAL IN
  • Seal Width: 0.310 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
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 5330-00-737-2612, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 19 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
NSN5330-00-737-2612
Primary Part Number50551
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerFederal-Mogul Corp Government Sales Dept
StatusCANCELLED
Case StyleSQUARE
Housing Bore Diameter3.125 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Accommodated Shaft Maximum Rated Speed2600 FEET PER MINUTE FT
MaterialSTEEL CASE
Accommodated Shaft Diameter2.312 INCHES NOMINAL IN
Seal Width0.310 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-054-6667 INTERCHANGEABLE
Screw,machine
5330-00-063-9059 INTERCHANGEABLE
Gasket
5950-00-081-143231176 INTERCHANGEABLE
Transformer,power,vibrator
Astec America Inc.
6510-00-100-16121561H INTERCHANGEABLE
Pad,foam,surgical
3m Company Div Health Care Business
5940-00-113-81840001591879 INTERCHANGEABLE
Terminal,lug
Daimler Truck North America Llc
5310-00-167-0721MS35333-41 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
2930-00-180-64458551 INTERCHANGEABLE
Pump,package
Elgin Industries Inc. Dba
5840-00-197-01791561 INTERCHANGEABLE
Roller,feed Drive
Gifft T H Co Inc
5950-00-228-4819 INTERCHANGEABLE
Coil,radio Frequency
1620-00-250-4658156-1 INTERCHANGEABLE
Plate,grease Seal,l
Textron Aviation Inc
Cross-Reference Index
Part NumberManufacturer
50551 PRIMARY Federal-Mogul Corp Government Sales Dept (USA)
34718 Eaton Corp Axle Div (USA)
718773 White Motor Corp (USA)
9415C Diamond Reo Truck Co (USA)
207483 Clark Equipment Co (USA)
31176 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
718773 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
207483 Dana Off Highway Products, Llc (USA)
174822 Northrop Grumman Systems Corporation (USA)
50551S PRIMARY Federal-Mogul Corp Government Sales Dept (USA)
2274887 General Motors Llc Dba General Motors Llc (USA)
1561 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
502285 Sealcraft Corporation (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
7372612 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
174822 Zf Industrieantriebe Witten Gmbh (DEU)
23063 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
TVAA4463A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
TVAA4463A Ford Motor Company (USA)
2274887 General Motors Corp (USA)
Related Parts
5305-00-054-6667INTERCHANGEABLE
SCREW,MACHINE
5330-00-063-9059INTERCHANGEABLE
GASKET
5950-00-081-1432INTERCHANGEABLE
TRANSFORMER,POWER,VIBRATOR
31176
6510-00-100-1612INTERCHANGEABLE
PAD,FOAM,SURGICAL
1561H
5940-00-113-8184INTERCHANGEABLE
TERMINAL,LUG
0001591879
5310-00-167-0721INTERCHANGEABLE
WASHER,LOCK
MS35333-41
2930-00-180-6445INTERCHANGEABLE
PUMP,PACKAGE
8551
5840-00-197-0179INTERCHANGEABLE
ROLLER,FEED DRIVE
1561
5950-00-228-4819INTERCHANGEABLE
COIL,RADIO FREQUENCY
1620-00-250-4658INTERCHANGEABLE
PLATE,GREASE SEAL,L
156-1
4730-00-253-4415INTERCHANGEABLE
ELBOW,PIPE
5930-00-259-9550INTERCHANGEABLE
SWITCH,ROTARY
724542

Frequently Asked Questions

What is NSN 5330-00-737-2612?

NSN 5330-00-737-2612 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 5330-00-737-2612?

NSN 5330-00-737-2612 has 20 cross-referenced part numbers: 50551 (Federal-Mogul Corp Government Sales Dept), 34718 (Eaton Corp Axle Div), 718773 (White Motor Corp), 9415C (Diamond Reo Truck Co), 207483 (Clark Equipment Co) and 15 more.

What NSN replaces 5330-00-737-2612?

There are 12 known substitutes for 5330-00-737-2612: 5305-00-054-6667, 5330-00-063-9059, 5950-00-081-1432 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50551?

Key specifications for 50551: Case Style: SQUARE; Housing Bore Diameter: 3.125 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Accommodated Shaft Maximum Rated Speed: 2600 FEET PER MINUTE FT. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-737-2612 still in active supply?

NSN 5330-00-737-2612 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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