NSN 3020-01-231-8665 · NIIN 012318665 · Part number D-9644
Control Flow, Inc. Dba Control Flow Inc · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 3X894
Government record, cited
NSN 3020-01-231-8665 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-231-8665. Manufacturer of record part number: D-9644.
Manufacturer of record: Control Flow, Inc. Dba Control Flow Inc
Identification
NSN: 3020-01-231-8665
NIIN: 012318665
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: D-9644
Manufacturer: Control Flow, Inc. Dba Control Flow Inc
General Description
The Gear,helical, cataloged under National Stock Number 3020-01-231-8665, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Control Flow, Inc. Dba Control Flow Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3020-01-231-8665
Primary Part Number
D-9644
Item Name
Gear,helical
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Control Flow, Inc. Dba Control Flow Inc
Status
ACTIVE
Body Style
WEBBED, WITH LIGHTENING HOLES
Bore Style
W/ KEYWAY BOTH ENDS
Style Designator
HUBLESS
Material
STEEL OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3020-01-231-8666E-100260POSSIBLE MATCH
GEAR,HELICAL
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3950-01-231-9789D-9640POSSIBLE MATCH
BREATHER ASSEMBLY,WINCH
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3020-01-232-2987C-22881POSSIBLE MATCH
GEAR,BEVEL
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3020-01-232-2990C-22882POSSIBLE MATCH
GEAR,HELICAL
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3020-01-232-2991E-100258POSSIBLE MATCH
GEAR,HELICAL
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3020-01-232-7901E-100259POSSIBLE MATCH
GEAR,HELICAL
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3020-01-232-8579C-22883POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
3020-01-232-8580D-100310POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Control Flow, Inc. Dba Control Flow Inc
Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
D-9644
5/9Secondary reference
Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
N-100154 PIECE 11
5/9Secondary reference
Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
Related Parts
3020-01-231-8666POSSIBLE MATCH
GEAR,HELICAL
E-100260
3950-01-231-9789POSSIBLE MATCH
BREATHER ASSEMBLY,WINCH
D-9640
3020-01-232-2987POSSIBLE MATCH
GEAR,BEVEL
C-22881
3020-01-232-2990POSSIBLE MATCH
GEAR,HELICAL
C-22882
3020-01-232-2991POSSIBLE MATCH
GEAR,HELICAL
E-100258
3020-01-232-7901POSSIBLE MATCH
GEAR,HELICAL
E-100259
3020-01-232-8579POSSIBLE MATCH
GEAR,SPUR
C-22883
3020-01-232-8580POSSIBLE MATCH
GEAR,SPUR
D-100310
Frequently Asked Questions
What is NSN 3020-01-231-8665?
NSN 3020-01-231-8665 is a Gear,helical, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-231-8665?
NSN 3020-01-231-8665 has 2 manufacturer part numbers on file: D-9644 (Control Flow, Inc. Dba Control Flow Inc), N-100154 PIECE 11 (Control Flow, Inc. Dba Control Flow Inc).
What NSN replaces 3020-01-231-8665?
8 possible matches (shared part number, not a government interchangeability claim): 3020-01-231-8666, 3950-01-231-9789, 3020-01-232-2987. Verify interchangeability with system specifications before substitution.
What are the specifications of D-9644?
Key specifications for D-9644: Body Style: WEBBED, WITH LIGHTENING HOLES; Bore Style: W/ KEYWAY BOTH ENDS; Style Designator: HUBLESS; Material: STEEL OVERALL. 4 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-231-8665 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.