PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3375Filter Unit,microporous

Tsi Incorporated · NSN 6640-01-574-0245 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-574-0245 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-574-0245. Primary manufacturer part number: 3375.
Features
  • Filter Unit,microporous — FSC 6640
  • 2 verified cross-references
  • Primary manufacturer: Tsi Incorporated
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter Unit,microporous, cataloged under National Stock Number 6640-01-574-0245, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Tsi Incorporated. This item has 2 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: Active.

Technical Specifications
ParameterValue
NSN6640-01-574-0245
Primary Part Number3375
Item NameFilter Unit,microporous
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerTsi Incorporated
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-154-19173375 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5970-00-160-3989 INTERCHANGEABLE
Bushing Nylon
5910-00-191-072610300154 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Us Army Aviation and Missile Command
2805-00-586-5227X-1856 INTERCHANGEABLE
Valve,poppet,engine
Federal-Mogul Corp Government Sales Dept
1680-00-727-5440337-5 INTERCHANGEABLE
Mirror Assembly,rearview
Industrial Glass Products, Inc.
6210-00-852-4614 INTERCHANGEABLE
Filter,indicator Light
4820-00-931-11233375 INTERCHANGEABLE
Poppet
Husco International Inc
5950-01-369-696834944 INTERCHANGEABLE
Transformer,power
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
6750-01-417-88213375 INTERCHANGEABLE
Plate,photographic
Horizons Incorporated Div Imaging Systems Group
5940-01-498-83203375 INTERCHANGEABLE
Terminal,quick Disconnect
Amw Cuyuna Engine Co. Inc Dba Two Stroke International
Cross-Reference Index
Part NumberManufacturer
3375 Airflow Instrument,tsi Instruments Ltd (GBR)
3375 PRIMARY Tsi Incorporated (USA)
Related Parts
5330-00-154-1917INTERCHANGEABLE
SEAL,PLAIN ENCASED
3375
5970-00-160-3989INTERCHANGEABLE
BUSHING NYLON
5910-00-191-0726INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
10300154
2805-00-586-5227INTERCHANGEABLE
VALVE,POPPET,ENGINE
X-1856
1680-00-727-5440INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
337-5
6210-00-852-4614INTERCHANGEABLE
FILTER,INDICATOR LIGHT
4820-00-931-1123INTERCHANGEABLE
POPPET
3375
5950-01-369-6968INTERCHANGEABLE
TRANSFORMER,POWER
34944
6750-01-417-8821INTERCHANGEABLE
PLATE,PHOTOGRAPHIC
3375
5940-01-498-8320INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
3375
5340-01-509-1542INTERCHANGEABLE
HINGE,ACCESS DOOR
3375

Frequently Asked Questions

What is NSN 6640-01-574-0245?

NSN 6640-01-574-0245 is a Filter Unit,microporous, manufactured by Tsi Incorporated, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-574-0245?

NSN 6640-01-574-0245 has 2 cross-referenced part numbers: 3375 (Airflow Instrument,tsi Instruments Ltd), 3375 (Tsi Incorporated).

What NSN replaces 6640-01-574-0245?

There are 11 known substitutes for 6640-01-574-0245: 5330-00-154-1917, 5970-00-160-3989, 5910-00-191-0726 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3375?

Key specifications for 3375: Part Name Assigned by Controlling Agency: FILTER UNIT; End Item Identification: AEROSOL MONITOR; Special Features: MICROPOROUS, PARTICAL INSTRUMENT. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com