PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

01T12376Head,fluid Filter

Falls Filtration Technologies, Inc. · NSN 1650-00-572-5521 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-572-5521 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-572-5521. Primary manufacturer part number: 01T12376.
Features
  • Head,fluid Filter — FSC 1650
  • Overall Diameter: 2.750 INCHES NOMINAL IN
  • Hole Diameter: 0.217 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
  • Usage Design: DIRECT INTEGRAL CAVITY MOUNTING
  • Filtering Material Design: STACKED DISK
  • Mounting Bolt Hole: PROVIDED
  • FSC Application Data: HEAD,FLUID FILTER,CONSTANT SPEED DRIVE,HYDRAULIC,F100 ACFT
  • Absolute Filtration Rating in Microns: 50.0
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Head,fluid Filter, cataloged under National Stock Number 1650-00-572-5521, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Falls Filtration Technologies, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-572-5521
Primary Part Number01T12376
Item NameHead,fluid Filter
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerFalls Filtration Technologies, Inc.
StatusACTIVE
Overall Diameter2.750 INCHES NOMINAL IN
Hole Diameter0.217 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
Usage DesignDIRECT INTEGRAL CAVITY MOUNTING
Filtering Material DesignSTACKED DISK
Mounting Bolt HolePROVIDED
FSC Application DataHEAD,FLUID FILTER,CONSTANT SPEED DRIVE,HYDRAULIC,F100 ACFT
Absolute Filtration Rating in Microns50.0
Inlet Port TypePLAIN HOLE
ValveINCLUDED
Quantity4
Filter ElementINCLUDED
Valve TypeBYPASS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3120-00-061-615323803 INTERCHANGEABLE
Bearing,sleeve
Triumph Engine Control Systems Llc
5310-00-520-795023803 INTERCHANGEABLE
Washer,flat
L3harris Technologies, Inc. Div Space and Airborne Systems
1630-00-909-2247133-50-1 INTERCHANGEABLE
Disc,brake
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5355-01-284-15792380-3 INTERCHANGEABLE
Window,dial
Mod-a-Can Inc
8470-01-506-6622 INTERCHANGEABLE
Helmet,advanced Combat
8470-01-506-6623 INTERCHANGEABLE
Helmet,advanced Combat
5985-01-676-1110ANT-4007 INTERCHANGEABLE
Antenna
Persistent Systems Llc
Cross-Reference Index
Part NumberManufacturer
23803A Hamilton Sundstrand Corp (USA)
23803A Hamilton Sundstrand Corporation (USA)
01T12376 PRIMARY Falls Filtration Technologies, Inc. (USA)
01T12376A Falls Filtration Technologies, Inc. (USA)
23803 Hamilton Sundstrand Corporation (USA)
Related Parts
3120-00-061-6153INTERCHANGEABLE
BEARING,SLEEVE
23803
5310-00-520-7950INTERCHANGEABLE
WASHER,FLAT
23803
1630-00-909-2247INTERCHANGEABLE
DISC,BRAKE
133-50-1
5355-01-284-1579INTERCHANGEABLE
WINDOW,DIAL
2380-3
8470-01-506-6622INTERCHANGEABLE
HELMET,ADVANCED COMBAT
8470-01-506-6623INTERCHANGEABLE
HELMET,ADVANCED COMBAT
5985-01-676-1110INTERCHANGEABLE
ANTENNA
ANT-4007

Frequently Asked Questions

What is NSN 1650-00-572-5521?

NSN 1650-00-572-5521 is a Head,fluid Filter, manufactured by Falls Filtration Technologies, Inc., classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-572-5521?

NSN 1650-00-572-5521 has 5 cross-referenced part numbers: 23803A (Hamilton Sundstrand Corp), 23803A (Hamilton Sundstrand Corporation), 01T12376 (Falls Filtration Technologies, Inc.), 01T12376A (Falls Filtration Technologies, Inc.), 23803 (Hamilton Sundstrand Corporation).

What NSN replaces 1650-00-572-5521?

There are 7 known substitutes for 1650-00-572-5521: 3120-00-061-6153, 5310-00-520-7950, 1630-00-909-2247 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 01T12376?

Key specifications for 01T12376: Overall Diameter: 2.750 INCHES NOMINAL IN; Hole Diameter: 0.217 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Overall Length: 4.102 INCHES NOMINAL IN; Usage Design: DIRECT INTEGRAL CAVITY MOUNTING. 13 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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