PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

225-27Holder,microporous Filter Unit

Skc Inc · NSN 6640-01-569-5668 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-569-5668 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-569-5668. Primary manufacturer part number: 225-27.
Features
  • Holder,microporous Filter Unit — FSC 6640
  • 3 verified cross-references
  • Primary manufacturer: Skc Inc
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Holder,microporous Filter Unit, cataloged under National Stock Number 6640-01-569-5668, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Skc Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-01-569-5668
Primary Part Number225-27
Item NameHolder,microporous Filter Unit
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerSkc Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2915-00-105-9532225257 INTERCHANGEABLE
Indicator,fuel Bypass
Facet (oklahoma) Llc
5905-00-138-960722527 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
General Dynamics Motion Control Llc
3805-00-320-4991 INTERCHANGEABLE
Plate,isolation,top
5133-00-596-7825 INTERCHANGEABLE
Drill,twist
5895-00-805-2166 INTERCHANGEABLE
Tuning Nut Assembly
5975-00-998-1877 INTERCHANGEABLE
Ring,electrical Bonding
4610-01-306-0242406004-1 INTERCHANGEABLE
Port,permeate,ro Vessel
Industrial Res Mch Pdts Llc
6130-01-628-564522527 INTERCHANGEABLE
Power Supply
Forenta Lp
3455-01-657-329022527 INTERCHANGEABLE
Reamer,shell,fluted
Morse Cutting Tools Div of Morse Cutting Tools Corp
Cross-Reference Index
Part NumberManufacturer
225-27 Saab Australia Pty Ltd (AUS)
225-27 Skc Ltd (GBR)
225-27 PRIMARY Skc Inc (USA)
Related Parts
2915-00-105-9532INTERCHANGEABLE
INDICATOR,FUEL BYPASS
225257
5905-00-138-9607INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
22527
3805-00-320-4991INTERCHANGEABLE
PLATE,ISOLATION,TOP
5133-00-596-7825INTERCHANGEABLE
DRILL,TWIST
5895-00-805-2166INTERCHANGEABLE
TUNING NUT ASSEMBLY
5975-00-998-1877INTERCHANGEABLE
RING,ELECTRICAL BONDING
4610-01-306-0242INTERCHANGEABLE
PORT,PERMEATE,RO VESSEL
406004-1
6130-01-628-5645INTERCHANGEABLE
POWER SUPPLY
22527
3455-01-657-3290INTERCHANGEABLE
REAMER,SHELL,FLUTED
22527

Frequently Asked Questions

What is NSN 6640-01-569-5668?

NSN 6640-01-569-5668 is a Holder,microporous Filter Unit, manufactured by Skc Inc, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-569-5668?

NSN 6640-01-569-5668 has 3 cross-referenced part numbers: 225-27 (Saab Australia Pty Ltd), 225-27 (Skc Ltd), 225-27 (Skc Inc).

What NSN replaces 6640-01-569-5668?

There are 9 known substitutes for 6640-01-569-5668: 2915-00-105-9532, 5905-00-138-9607, 3805-00-320-4991 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 225-27?

Key specifications for 225-27: Part Name Assigned by Controlling Agency: FILTER SUPPORT PADS. 1 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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