NSN 2805-01-137-4018 — this item is cataloged by the U.S. Government under National Stock Number 2805-01-137-4018. Manufacturer of record part number: DR-24-S-20.
Also searched as2805-01-137-4018 ·
2805011374018 ·
NIIN 011374018 ·
01-137-4018 ·
FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · CAGE 66289 · DR-24-S-20
Ring Set Component Parts: COMPRESSION RING,DC-187-S-20,66289,4; SCRAPER RING,DC-188-S-20,66289,4; OIL RING,DC-189-S-20,66289,4
Piston Accommodation Quantity: 4
Standard Bore Diameter: 3.270 INCHES IN
1 manufacturer part number on file
Manufacturer of record: Wisconsin Motors, Llc
Identification
NSN: 2805-01-137-4018
NIIN: 011374018
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: DR-24-S-20
Manufacturer: Wisconsin Motors, Llc
General Description
The Ring Set,piston, cataloged under National Stock Number 2805-01-137-4018, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 4 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. Current acquisition status: Active.
Other items in FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2805-00-000-4022
2805-00-000-4022 · Item name not on file
2805-00-001-0029
2805-00-001-0029 · Item name not on file
2805-00-001-3527
2805-00-001-3527 · Item name not on file
2805-00-001-3844
2805-00-001-3844 · Item name not on file
2805-00-001-3854
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2805-00-001-6154 · Item name not on file
2805-00-001-6164
FLYWHEEL,ENGINE
2805-00-001-6575
RING SET,PISTON
Frequently Asked Questions
What is NSN 2805-01-137-4018?
NSN 2805-01-137-4018 is a Ring Set,piston, manufactured by Wisconsin Motors, Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
What part numbers are listed for NSN 2805-01-137-4018?
NSN 2805-01-137-4018 has 1 manufacturer part number on file: DR-24-S-20 (Wisconsin Motors, Llc).
What are the specifications of DR-24-S-20?
Key specifications for DR-24-S-20: Bore Diameter Oversize: 0.020 INCHES IN; Ring Set Component Parts: COMPRESSION RING,DC-187-S-20,66289,4; SCRAPER RING,DC-188-S-20,66289,4; OIL RING,DC-189-S-20,66289,4; Piston Accommodation Quantity: 4; Standard Bore Diameter: 3.270 INCHES IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 2805-01-137-4018 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.