NSN 4330-01-578-6789 · NIIN 015786789 · Part number 4T0521
Caterpillar Inc Div Caterpillar Defense · FSC 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters · FSG 43 — Pumps and Compressors · CAGE 11083
Government record, cited
NSN 4330-01-578-6789 — this item is cataloged by the U.S. Government under National Stock Number 4330-01-578-6789. Manufacturer of record part number: 4T0521.
Also searched as4330-01-578-6789 ·
4330015786789 ·
NIIN 015786789 ·
01-578-6789 ·
FSC 4330 Centrifugals, Separators, and Pressure and Vacuum Filters · CAGE 11083 · 4T0521 · 4T-0521
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 4330-01-578-6789
NIIN: 015786789
FSC: 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters
FSG: 43 — Pumps and Compressors
Primary part number: 4T0521
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Bracket,filter Mounting, cataloged under National Stock Number 4330-01-578-6789, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4330-01-578-6789
Primary Part Number
4T0521
Item Name
Bracket,filter Mounting
FSC / FSG
4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters
Other items in FSC 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4330-00-000-0145
FILTER ELEMENT,FLUID
4330-00-000-0145
FILTER ELEMENT,FLUID
4330-00-001-1246
4330-00-001-1246 · Item name not on file
4330-00-001-1733
ADAPTER,FLUID FILTER
4330-00-001-2626
FILTER ELEMENT,FLUID
4330-00-001-2700
4330-00-001-2700 · Item name not on file
4330-00-001-3511
4330-00-001-3511 · Item name not on file
4330-00-001-3512
4330-00-001-3512 · Item name not on file
Frequently Asked Questions
What is NSN 4330-01-578-6789?
NSN 4330-01-578-6789 is a Bracket,filter Mounting, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
What part numbers are listed for NSN 4330-01-578-6789?
NSN 4330-01-578-6789 has 2 manufacturer part numbers on file: 4T-0521 (Pon Equipment B.v.), 4T0521 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 4T0521?
Key specifications for 4T0521: Part Name Assigned by Controlling Agency: BOLT FILTER; End Item Identification: 2410-01-565-2603, TRACTOR, FULL TRACKED, LOW SPEED. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4330-01-578-6789 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.