NSN 3020-01-677-1183 · NIIN 016771183 · Part number 20531A
Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 4PTF3
Government record, cited
NSN 3020-01-677-1183 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-677-1183. Manufacturer of record part number: 20531A.
Also searched as3020-01-677-1183 ·
3020016771183 ·
NIIN 016771183 ·
01-677-1183 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 4PTF3 · 20531A
Manufacturer of record: Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark
Identification
NSN: 3020-01-677-1183
NIIN: 016771183
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 20531A
Manufacturer: Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark
General Description
The Lock Ring-Gear Assembly, cataloged under National Stock Number 3020-01-677-1183, 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 Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3020-01-677-1183
Primary Part Number
20531A
Item Name
Lock Ring-Gear Assembly
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark
Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark (USA)
No interchangeability data on file.
Other items in FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091
GEAR,SPUR
3020-00-001-0027
3020-00-001-0027 · Item name not on file
3020-00-001-0028
3020-00-001-0028 · Item name not on file
3020-00-001-0063
3020-00-001-0063 · Item name not on file
3020-00-001-0064
3020-00-001-0064 · Item name not on file
3020-00-001-0066
3020-00-001-0066 · Item name not on file
3020-00-001-0071
3020-00-001-0071 · Item name not on file
3020-00-001-0072
3020-00-001-0072 · Item name not on file
Frequently Asked Questions
What is NSN 3020-01-677-1183?
NSN 3020-01-677-1183 is a Lock Ring-Gear Assembly, manufactured by Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-677-1183?
NSN 3020-01-677-1183 has 1 manufacturer part number on file: 20531A (Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark).
What are the specifications of 20531A?
Key specifications for 20531A: End Item Identification: CABIN DOORS AND WINDOWS;29-RB-S-625-001;81340. 0 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-677-1183 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.