PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21904Filter,special

Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div · NSN 4330-00-478-6574 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-00-478-6574 — this item is cataloged by the U.S. Government under National Stock Number 4330-00-478-6574. Primary manufacturer part number: 21904.
Features
  • Filter,special — FSC 4330
  • 1 verified cross-reference
  • Primary manufacturer: Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,special, cataloged under National Stock Number 4330-00-478-6574, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFilter,special
FSC / FSG4330 — No Item Name Available (FSG 43)
ManufacturersPall Aeropower Corp Sub of Pall Corp Mectron Industries Div (CAGE 10989)
Technical Specifications
ParameterValue
NSN4330-00-478-6574
Primary Part Number21904
Item NameFilter,special
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerPall Aeropower Corp Sub of Pall Corp Mectron Industries Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1650-00-083-404021904 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Mid-America Aerotech, Llc
5930-00-101-22982890907-1 INTERCHANGEABLE
Switch,thermostatic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3020-00-269-968799121904 INTERCHANGEABLE
Gear,spur
Alfa Laval Inc
5965-00-404-048621904 INTERCHANGEABLE
Shell,microphone
Astrocom Electronics Inc
5310-00-741-137921-904 INTERCHANGEABLE
Nut,plain,octagon
Pdi Ground Support Systems, Inc.
5342-01-011-022921904 INTERCHANGEABLE
Handle,handwheel
Jergens Inc Div Tooling Components Division
4810-01-049-372321904 INTERCHANGEABLE
Plunger,valve
Eaton Aerospace Llc
5940-01-089-25404878-14-1 INTERCHANGEABLE
Terminal,stud
Advanced Interconnections Corporation
3460-01-360-037621904 INTERCHANGEABLE
Arbor,hole Saw
Black and Decker Us Inc
Cross-Reference Index
Part NumberManufacturer
21904 PRIMARY Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA)
Related Parts
1650-00-083-4040INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
21904
5930-00-101-2298INTERCHANGEABLE
SWITCH,THERMOSTATIC
2890907-1
3020-00-269-9687INTERCHANGEABLE
GEAR,SPUR
99121904
5965-00-404-0486INTERCHANGEABLE
SHELL,MICROPHONE
21904
5310-00-741-1379INTERCHANGEABLE
NUT,PLAIN,OCTAGON
21-904
5342-01-011-0229INTERCHANGEABLE
HANDLE,HANDWHEEL
21904
4810-01-049-3723INTERCHANGEABLE
PLUNGER,VALVE
21904
5940-01-089-2540INTERCHANGEABLE
TERMINAL,STUD
4878-14-1
3460-01-360-0376INTERCHANGEABLE
ARBOR,HOLE SAW
21904

Frequently Asked Questions

What is NSN 4330-00-478-6574?

NSN 4330-00-478-6574 is a Filter,special, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-00-478-6574?

NSN 4330-00-478-6574 has 1 cross-referenced part number: 21904 (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).

What NSN replaces 4330-00-478-6574?

There are 9 known substitutes for 4330-00-478-6574: 1650-00-083-4040, 5930-00-101-2298, 3020-00-269-9687 and 6 more. Verify interchangeability with system specifications before substitution.

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