NSN 3020-01-173-4653 · NIIN 011734653 · Part number 81120
DP Manufacturing Inc. · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 0EJ14
Government record, cited
NSN 3020-01-173-4653 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-173-4653. Manufacturer of record part number: 81120.
Also searched as3020-01-173-4653 ·
3020011734653 ·
NIIN 011734653 ·
01-173-4653 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 0EJ14 · 81120 · 2AN555 · 2AN555
General Characteristics Item Description: MATL STEEL;8.000 IN.OD,4.500 IN.O/A LG IN
2 manufacturer part numbers on file
Manufacturer of record: DP Manufacturing Inc.
Identification
NSN: 3020-01-173-4653
NIIN: 011734653
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 81120
Manufacturer: DP Manufacturing Inc.
General Description
The Gear,ring, cataloged under National Stock Number 3020-01-173-4653, 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 DP Manufacturing Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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
3020-01-173-4653
Primary Part Number
81120
Item Name
Gear,ring
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
DP Manufacturing Inc.
Status
ACTIVE
General Characteristics Item Description
MATL STEEL;8.000 IN.OD,4.500 IN.O/A LG 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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4320-01-399-56988D1290POSSIBLE MATCH
PUMP,ROTARY
Possible match (shared part number)Amada Machinery America, Inc.
5330-01-652-527381120POSSIBLE MATCH
GASKET
Possible match (shared part number)Aerco International, Inc. Dba Aerco International Inc
4720-01-659-2531811-20POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
NSN 3020-01-173-4653 is a Gear,ring, manufactured by DP Manufacturing Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-173-4653?
NSN 3020-01-173-4653 has 2 manufacturer part numbers on file: 2AN555 (Oshkosh Defense Llc), 81120 (DP Manufacturing Inc.).
What NSN replaces 3020-01-173-4653?
3 possible matches (shared part number, not a government interchangeability claim): 4320-01-399-5698, 5330-01-652-5273, 4720-01-659-2531. Verify interchangeability with system specifications before substitution.
What are the specifications of 81120?
Key specifications for 81120: General Characteristics Item Description: MATL STEEL;8.000 IN.OD,4.500 IN.O/A LG IN; End Item Identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS). 1 specification is documented in the U.S. Government catalog.
Is NSN 3020-01-173-4653 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.