PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27178Seal,nonmetallic Round Section

Altra Industrial Motion Corp. · NSN 5330-01-166-6542 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-166-6542 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-166-6542. Primary manufacturer part number: 27178.
Features
  • Seal,nonmetallic Round Section — FSC 5330
  • Cross Section Inside Diameter: 0.6325 INCHES NOMINAL IN
  • Material: RUBBER OVERALL
  • Style Designator: CIRCULAR
  • Fabrication Method: SOLID
  • Cross Section Outside Diameter: 1.3125 INCHES NOMINAL IN
  • Aperture Diameter: 0.625 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: CIRCULAR WITH CENTER APERTURE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Overall construction
General Description

The Seal,nonmetallic Round Section, cataloged under National Stock Number 5330-01-166-6542, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-166-6542
Primary Part Number27178
Item NameSeal,nonmetallic Round Section
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Cross Section Inside Diameter0.6325 INCHES NOMINAL IN
MaterialRUBBER OVERALL
Style DesignatorCIRCULAR
Fabrication MethodSOLID
Cross Section Outside Diameter1.3125 INCHES NOMINAL IN
Aperture Diameter0.625 INCHES NOMINAL IN
Cross-Sectional Shape StyleCIRCULAR WITH CENTER APERTURE
ConstructionSOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-935-8543 INTERCHANGEABLE
Resistor,fixed,composition
Cross-Reference Index
Part NumberManufacturer
27178 PRIMARY Altra Industrial Motion Corp. (USA)
11829416 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
Related Parts
5905-00-935-8543INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION

Frequently Asked Questions

What is NSN 5330-01-166-6542?

NSN 5330-01-166-6542 is a Seal,nonmetallic Round Section, manufactured by Altra Industrial Motion Corp., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-166-6542?

NSN 5330-01-166-6542 has 2 cross-referenced part numbers: 27178 (Altra Industrial Motion Corp.), 11829416 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).

What NSN replaces 5330-01-166-6542?

There is 1 known substitute for 5330-01-166-6542: 5905-00-935-8543. Verify interchangeability with system specifications before substitution.

What are the specifications of 27178?

Key specifications for 27178: Cross Section Inside Diameter: 0.6325 INCHES NOMINAL IN; Material: RUBBER OVERALL; Style Designator: CIRCULAR; Fabrication Method: SOLID. 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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