PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4F6888Seal,plain Encased

Caterpillar Inc Div Caterpillar Defense · NSN 5330-00-171-7886 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-171-7886 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-171-7886. Primary manufacturer part number: 4F6888.
Features
  • Seal,plain Encased — FSC 5330
  • Material: STEEL CASE
  • Sealing Element Style: ANGULAR
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 2.625 INCHES NOMINAL IN
  • Material: LEATHER SEALING ELEMENT
  • Housing Bore Diameter: 3.481 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
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 5330-00-171-7886, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-171-7886
Primary Part Number4F6888
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
MaterialSTEEL CASE
Sealing Element StyleANGULAR
Seal Width0.500 INCHES NOMINAL IN
Accommodated Shaft Diameter2.625 INCHES NOMINAL IN
MaterialLEATHER SEALING ELEMENT
Housing Bore Diameter3.481 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Case StyleSQUARE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
4730-00-053-0264 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-174-455112Z330PC30 INTERCHANGEABLE
Swing Joint,pipe
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-227-2871MS24464-12 INTERCHANGEABLE
Bearing,roller,needle
Sae International Dba Sae International
5120-00-264-3796 INTERCHANGEABLE
Wrench,adjustable
3030-00-649-9445490-3 INTERCHANGEABLE
Belts,v,matched Set
Gates Corporation
2520-00-929-541550412 INTERCHANGEABLE
Shaft,axle,automotive
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5950-00-999-4876 INTERCHANGEABLE
Transformer,power
6530-01-140-540350412 INTERCHANGEABLE
Pan and Screen Ir
Olympic Medical Corp
5940-01-248-621650412 INTERCHANGEABLE
Terminal Board
Wells Mfg Co
4820-01-657-8075504-700-12 INTERCHANGEABLE
Valve,angle
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Cross-Reference Index
Part NumberManufacturer
50412 Federal-Mogul Corp Chassis Products Div (USA)
5042 Federal-Mogul Corp Chassis Products Div (USA)
4F6888 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
4730-00-053-0264INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-174-4551INTERCHANGEABLE
SWING JOINT,PIPE
12Z330PC30
3110-00-227-2871INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS24464-12
5120-00-264-3796INTERCHANGEABLE
WRENCH,ADJUSTABLE
3030-00-649-9445INTERCHANGEABLE
BELTS,V,MATCHED SET
490-3
2520-00-929-5415INTERCHANGEABLE
SHAFT,AXLE,AUTOMOTIVE
50412
5950-00-999-4876INTERCHANGEABLE
TRANSFORMER,POWER
6530-01-140-5403INTERCHANGEABLE
PAN AND SCREEN IR
50412
5940-01-248-6216INTERCHANGEABLE
TERMINAL BOARD
50412
4820-01-657-8075INTERCHANGEABLE
VALVE,ANGLE
504-700-12
4820-01-706-9526INTERCHANGEABLE
REPAIR KIT,VALVE
504-12

Frequently Asked Questions

What is NSN 5330-00-171-7886?

NSN 5330-00-171-7886 is a Seal,plain Encased, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-171-7886?

NSN 5330-00-171-7886 has 3 cross-referenced part numbers: 50412 (Federal-Mogul Corp Chassis Products Div), 5042 (Federal-Mogul Corp Chassis Products Div), 4F6888 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5330-00-171-7886?

There are 11 known substitutes for 5330-00-171-7886: 4730-00-053-0264, 4730-00-174-4551, 3110-00-227-2871 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4F6888?

Key specifications for 4F6888: Material: STEEL CASE; Sealing Element Style: ANGULAR; Seal Width: 0.500 INCHES NOMINAL IN; Accommodated Shaft Diameter: 2.625 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-171-7886 still in active supply?

NSN 5330-00-171-7886 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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