NSN 3020-00-845-9276 · NIIN 008459276 · Part number 42252
Cummins Inc. · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 15434
Government record, cited
NSN 3020-00-845-9276 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-845-9276. Manufacturer of record part number: 42252.
Also searched as3020-00-845-9276 ·
3020008459276 ·
NIIN 008459276 ·
00-845-9276 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 15434 · 42252
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 42252
Manufacturer: Cummins Inc.
General Description
The Gear,helical, cataloged under National Stock Number 3020-00-845-9276, 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 Cummins Inc.. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 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
3020-00-845-9276
Primary Part Number
42252
Item Name
Gear,helical
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Cummins Inc.
Status
ACTIVE
Keyway Nominal Width
0.501 INCHES BOTH ENDS IN
Bore Nominal Diameter
3.376 INCHES BOTH ENDS IN
Helix Angle
15.0000 DEGREES
Teeth Quantity
39
Body Style
PLAIN, SOLID
Tooth Direction
LEFT
Bore Style
W/ KEYWAY BOTH ENDS
Teeth Type
SINGLE HELIX
Hardness Rating
44.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
Style Designator
HUBLESS
Pitch Diameter
5.0470 INCHES NOMINAL IN
Tooth Form
STANDARD
Nominal Outside Diameter
5.295 INCHES IN
Nominal Distance From Bore Center to Keyway Bottom
1.925 INCHES BOTH ENDS IN
Pressure Angle
20.0000 DEGREES
Material
STEEL OVERALL
Face Nominal Width
2.250 INCHES IN
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5962-01-088-856242252POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Possible match (shared part number)Raytheon Company Div Rmd Strategic
5999-01-097-2047POSSIBLE MATCH
CLIP,ELECTRICAL
Possible match (shared part number)
4820-01-185-8021N42252POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
5331-01-537-307842252POSSIBLE MATCH
O-RING
Possible match (shared part number)Tyco Fire Products Lp
5995-01-574-613642252-1POSSIBLE MATCH
CABLE ASSEMBLY,RADIO FREQUENCY
Possible match (shared part number)Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
5330-01-582-556642252POSSIBLE MATCH
GASKET
Possible match (shared part number)Westerbeke Corporation
NSN 3020-00-845-9276 is a Gear,helical, manufactured by Cummins Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-00-845-9276?
NSN 3020-00-845-9276 has 1 manufacturer part number on file: 42252 (Cummins Inc.).
What NSN replaces 3020-00-845-9276?
6 possible matches (shared part number, not a government interchangeability claim): 5962-01-088-8562, 5999-01-097-2047, 4820-01-185-8021. Verify interchangeability with system specifications before substitution.
What are the specifications of 42252?
Key specifications for 42252: Keyway Nominal Width: 0.501 INCHES BOTH ENDS IN; Bore Nominal Diameter: 3.376 INCHES BOTH ENDS IN; Helix Angle: 15.0000 DEGREES; Teeth Quantity: 39. 17 specifications are documented in the U.S. Government catalog.
Is NSN 3020-00-845-9276 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.