PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

88AX12Seal,plain Encased

Mack Trucks Inc Parts Opn · NSN 5330-00-291-7946 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-291-7946 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-291-7946. Primary manufacturer part number: 88AX12.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 1.188 INCHES NOMINAL IN
  • Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
  • Case Style: SQUARE
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Maximum Rated Speed: 1600 FEET PER MINUTE FT
  • Housing Bore Diameter: 1.982 INCHES MINIMUM AND 1.984 INCHES MAXIMUM IN
  • 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 Leather or Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-7946, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mack Trucks Inc Parts Opn. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-291-7946
Primary Part Number88AX12
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerMack Trucks Inc Parts Opn
StatusACTIVE
Accommodated Shaft Diameter1.188 INCHES NOMINAL IN
MaterialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
Case StyleSQUARE
Sealing Element StyleANGULAR
Accommodated Shaft Maximum Rated Speed1600 FEET PER MINUTE FT
Housing Bore Diameter1.982 INCHES MINIMUM AND 1.984 INCHES MAXIMUM IN
Seal Width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-142-4335B543SD610 INTERCHANGEABLE
Bearing,ball,airframe
New Hampshire Ball Bearings Inc Div Hitech Division
5330-00-177-972111943A INTERCHANGEABLE
Seal,plain Encased
Brinkley Technology Group Llc Dba Hercules Manufacturing
5306-00-191-82905000-29 INTERCHANGEABLE
Bolt,roll Pin
Pdi Ground Support Systems, Inc.
5330-00-285-1345 INTERCHANGEABLE
Seal,plain Encased
5330-00-285-3331 INTERCHANGEABLE
Seal,plain Encased
5330-00-286-68291-955 INTERCHANGEABLE
Seal,plain Encased
Terex Usa, Llc Dba Terex Equipment Services
5330-00-286-685160480 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5330-00-286-6869 INTERCHANGEABLE
Seal,plain Encased
5330-00-286-7054 INTERCHANGEABLE
Seal,plain Encased
5330-00-286-8149 INTERCHANGEABLE
Seal,plain Encased
Cross-Reference Index
Part NumberManufacturer
43-838 Federal-Mogul Corp Chassis Products Div (USA)
3031L Dura Corp (USA)
500029 CAGE 00000
RIXS152 CAGE 00000
5203 Holmes Intl Inc (USA)
88AX12 PRIMARY Mack Trucks Inc Parts Opn (USA)
84412 Fitzgerald Gasket a Co of Tannetics Inc (USA)
926155 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
525H Dura Corp (USA)
Related Parts
3110-00-142-4335INTERCHANGEABLE
BEARING,BALL,AIRFRAME
B543SD610
5330-00-177-9721INTERCHANGEABLE
SEAL,PLAIN ENCASED
11943A
5306-00-191-8290INTERCHANGEABLE
BOLT,ROLL PIN
5000-29
5330-00-285-1345INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-285-3331INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-286-6829INTERCHANGEABLE
SEAL,PLAIN ENCASED
1-955
5330-00-286-6851INTERCHANGEABLE
SEAL,PLAIN ENCASED
60480
5330-00-286-6869INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-286-7054INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-286-8149INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-286-8175INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-291-2866INTERCHANGEABLE
SEAL,PLAIN ENCASED

Frequently Asked Questions

What is NSN 5330-00-291-7946?

NSN 5330-00-291-7946 is a Seal,plain Encased, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-291-7946?

NSN 5330-00-291-7946 has 9 cross-referenced part numbers: 43-838 (Federal-Mogul Corp Chassis Products Div), 3031L (Dura Corp), 500029, RIXS152, 5203 (Holmes Intl Inc) and 4 more.

What NSN replaces 5330-00-291-7946?

There are 12 known substitutes for 5330-00-291-7946: 3110-00-142-4335, 5330-00-177-9721, 5306-00-191-8290 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 88AX12?

Key specifications for 88AX12: Accommodated Shaft Diameter: 1.188 INCHES NOMINAL IN; Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT; Case Style: SQUARE; Sealing Element Style: ANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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