NSN 3020-01-074-0539 · NIIN 010740539 · Part number GB48B
Altra Industrial Motion Corp. · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 71041
Government record, cited
NSN 3020-01-074-0539 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-074-0539. Manufacturer of record part number: GB48B.
Also searched as3020-01-074-0539 ·
3020010740539 ·
NIIN 010740539 ·
01-074-0539 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 71041 · GB48B · 10956 · GB48
Manufacturer of record: Altra Industrial Motion Corp.
Identification
NSN: 3020-01-074-0539
NIIN: 010740539
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: GB48B
Manufacturer: Altra Industrial Motion Corp.
General Description
The Gear,spur, cataloged under National Stock Number 3020-01-074-0539, 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 Altra Industrial Motion Corp.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
3020-01-074-0539
Primary Part Number
GB48B
Item Name
Gear,spur
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Altra Industrial Motion Corp.
Status
ACTIVE
Teeth Quantity
48
Material
IRON CAST 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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5965-01-182-3384POSSIBLE MATCH
HEADSET,ELECTRICAL
Possible match (shared part number)
5120-01-225-538810956POSSIBLE MATCH
KEY,SOCKET HEAD SCREW
Possible match (shared part number)Bondhus Corp
4730-01-351-855010956POSSIBLE MATCH
STRAINER ELEMENT,SEDIMENT
Possible match (shared part number)Triumph Engine Control Systems Llc
2530-01-373-4148POSSIBLE MATCH
ADJUSTING SCREW,BRAKE SHOE
Possible match (shared part number)
5930-01-459-151110956POSSIBLE MATCH
SWITCH,TOGGLE
Possible match (shared part number)Krack Corp
3020-01-503-248110956POSSIBLE MATCH
GEAR,WORM
Possible match (shared part number)Climax Portable Machine Tools, Inc
5930-01-509-613310956POSSIBLE MATCH
SWITCH,PRESSURE
Possible match (shared part number)North American Controls Inc Dba North American Controls Inc
5330-01-662-748610956POSSIBLE MATCH
PARTS KIT,SEAL REPLACEMENT,MECHA
Possible match (shared part number)Oberdorfer Pumps Inc
1005-01-736-251210956POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Dillon Aero, Inc.
NSN 3020-01-074-0539 is a Gear,spur, manufactured by Altra Industrial Motion Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-074-0539?
NSN 3020-01-074-0539 has 2 manufacturer part numbers on file: 10956 (Altra Industrial Motion Corp.), GB48B (Altra Industrial Motion Corp.).
What NSN replaces 3020-01-074-0539?
9 possible matches (shared part number, not a government interchangeability claim): 5965-01-182-3384, 5120-01-225-5388, 4730-01-351-8550. Verify interchangeability with system specifications before substitution.
What are the specifications of GB48B?
Key specifications for GB48B: Teeth Quantity: 48; Material: IRON CAST OVERALL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-074-0539 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.