PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81-0231Filter-Separator,liquid Fuel

K & N Engineering, Inc. Dba Aem Induction · NSN 4930-01-664-6668 · FSC 4930 · No Item Name Available
Verified by PartsTable
NSN 4930-01-664-6668 — this item is cataloged by the U.S. Government under National Stock Number 4930-01-664-6668. Primary manufacturer part number: 81-0231.
Features
  • Filter-Separator,liquid Fuel — FSC 4930
  • Length: 1.75 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: K & N Engineering, Inc. Dba Aem Induction
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Filter-Separator,liquid Fuel, cataloged under National Stock Number 4930-01-664-6668, is classified within Federal Supply Class 4930 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is K & N Engineering, Inc. Dba Aem Induction. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4930-01-664-6668
Primary Part Number81-0231
Item NameFilter-Separator,liquid Fuel
FSC / FSG4930 / 49 — No Item Name Available
ManufacturerK & N Engineering, Inc. Dba Aem Induction
StatusACTIVE
Length1.75 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5999-00-466-3226 INTERCHANGEABLE
Mounting Pad,electrical-Electron
3040-01-297-5615810231-42 INTERCHANGEABLE
Worm Shaft
Tri-Tec Manufacturing Llc
Cross-Reference Index
Part NumberManufacturer
81-0231 PRIMARY K & N Engineering, Inc. Dba Aem Induction (USA)
Related Parts
5999-00-466-3226INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
3040-01-297-5615INTERCHANGEABLE
WORM SHAFT
810231-42

Frequently Asked Questions

What is NSN 4930-01-664-6668?

NSN 4930-01-664-6668 is a Filter-Separator,liquid Fuel, manufactured by K & N Engineering, Inc. Dba Aem Induction, classified under FSC 4930 (No Item Name Available). Status: active.

What are the part numbers for NSN 4930-01-664-6668?

NSN 4930-01-664-6668 has 1 cross-referenced part number: 81-0231 (K & N Engineering, Inc. Dba Aem Induction).

What NSN replaces 4930-01-664-6668?

There are 2 known substitutes for 4930-01-664-6668: 5999-00-466-3226, 3040-01-297-5615. Verify interchangeability with system specifications before substitution.

What are the specifications of 81-0231?

Key specifications for 81-0231: Part Name Assigned by Controlling Agency: STAINLESS MESH FUEL FILTER; Length: 1.75 INCHES NOMINAL IN; Special Features: OUTSIDE DIAMETER:1.34 IN.; FILTER MATERIAL: STAINLESS MESH IN. 3 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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