PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33S44375-1350Seal,plain Encased

Naval Ordnance Standards · NSN 5330-00-559-2708 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-559-2708 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-559-2708. Primary manufacturer part number: 33S44375-1350.
Features
  • Seal,plain Encased — FSC 5330
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Seal Width: 0.375 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Case Style: SQUARE
  • Material: STEEL CORROSION RESISTING CASE
  • Accommodated Shaft Diameter: 0.750 INCHES NOMINAL IN
  • 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 5330-00-559-2708, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ordnance Standards. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5330-00-559-2708
Primary Part Number33S44375-1350
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNaval Ordnance Standards
StatusCANCELLED
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Seal Width0.375 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Case StyleSQUARE
MaterialSTEEL CORROSION RESISTING CASE
Accommodated Shaft Diameter0.750 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Housing Bore Diameter1.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-258-9896205-102 INTERCHANGEABLE
Jack,tip
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
6625-00-261-51277603 INTERCHANGEABLE
Oscilloscope Mainframe
Tektronix, Inc.
5360-00-263-45657603 INTERCHANGEABLE
Spring,helical,compression
Te Connectivity Corporation
5330-00-291-956051-7-6 INTERCHANGEABLE
Packing,preformed
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
4910-00-355-6131 INTERCHANGEABLE
Cutter Blade
2825-00-388-69227603 INTERCHANGEABLE
Retainer,spring
Northrop Grumman Systems Corporation Div Marine Systems
5905-00-432-7650 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
4310-00-446-33887603 INTERCHANGEABLE
Ring,piston
Kaydon Ring & Seal Inc Dba Skf Precision Technologies
5360-00-526-16507603 INTERCHANGEABLE
Spring,helical,extension
Telemechanics Inc
5310-00-550-1469 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
33S44375-1350 Naval Ordnance Standards (USA)
16124 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
7603 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
5-176 Stimpson Computing Scale Co Inc Sub of Mozley Mfg Cco Inc (USA)
Related Parts
5935-00-258-9896INTERCHANGEABLE
JACK,TIP
205-102
6625-00-261-5127INTERCHANGEABLE
OSCILLOSCOPE MAINFRAME
7603
5360-00-263-4565INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
7603
5330-00-291-9560INTERCHANGEABLE
PACKING,PREFORMED
51-7-6
4910-00-355-6131INTERCHANGEABLE
CUTTER BLADE
2825-00-388-6922INTERCHANGEABLE
RETAINER,SPRING
7603
5905-00-432-7650INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
4310-00-446-3388INTERCHANGEABLE
RING,PISTON
7603
5360-00-526-1650INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
7603
5310-00-550-1469INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3110-00-554-3355INTERCHANGEABLE
BEARING,BALL,ANNULAR
5935-00-557-4444INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
1604721

Frequently Asked Questions

What is NSN 5330-00-559-2708?

NSN 5330-00-559-2708 is a Seal,plain Encased, manufactured by Naval Ordnance Standards, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-559-2708?

NSN 5330-00-559-2708 has 5 cross-referenced part numbers: 33S44375-1350 (Naval Ordnance Standards), 16124 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 7603 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 5-176 (Stimpson Computing Scale Co Inc Sub of Mozley Mfg Cco Inc).

What NSN replaces 5330-00-559-2708?

There are 12 known substitutes for 5330-00-559-2708: 5935-00-258-9896, 6625-00-261-5127, 5360-00-263-4565 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33S44375-1350?

Key specifications for 33S44375-1350: Material: RUBBER SYNTHETIC SEALING ELEMENT; Seal Width: 0.375 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Case Style: SQUARE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-559-2708 still in active supply?

NSN 5330-00-559-2708 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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