NSN 2815-01-240-2743 — this item is cataloged by the U.S. Government under National Stock Number 2815-01-240-2743. Manufacturer of record part number: 204105.
Also searched as2815-01-240-2743 ·
2815012402743 ·
NIIN 012402743 ·
01-240-2743 ·
FSC 2815 Diesel Engines and Components · CAGE 64104 · 204105
Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
Joint Style: VERTICAL JOINT
Ring Style: CONCENTRIC
Standard Bore Diameter: 8.500 INCHES IN
1 manufacturer part number on file
Manufacturer of record: Dresser, Llc
Identification
NSN: 2815-01-240-2743
NIIN: 012402743
FSC: 2815 — Diesel Engines and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 204105
Manufacturer: Dresser, Llc
General Description
The Ring,piston, cataloged under National Stock Number 2815-01-240-2743, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Dresser, 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. 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
2815-01-240-2743
Primary Part Number
204105
Item Name
Ring,piston
FSC / FSG
2815 / 28 — Diesel Engines and Components
Manufacturer
Dresser, Llc
Status
ACTIVE
Cross-Sectional Shape Style
PLAIN RECTANGULAR, STRAIGHT FACE
Joint Style
VERTICAL JOINT
Ring Style
CONCENTRIC
Standard Bore Diameter
8.500 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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4220-01-408-5789204105POSSIBLE MATCH
UNDERWEAR,DIVER'S DRY SUIT
Possible match (shared part number)Diving Unlimited International Inc
6515-01-468-1860204.105POSSIBLE MATCH
SCREW,CORTEX
Possible match (shared part number)Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
3110-01-691-731403319540POSSIBLE MATCH
BEARING,BALL,ANNULAR
Possible match (shared part number)Grove U.s. Llc Dba Grove Us Llc
NSN 2815-01-240-2743 is a Ring,piston, manufactured by Dresser, Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
What part numbers are listed for NSN 2815-01-240-2743?
NSN 2815-01-240-2743 has 1 manufacturer part number on file: 204105 (Dresser, Llc).
What NSN replaces 2815-01-240-2743?
3 possible matches (shared part number, not a government interchangeability claim): 4220-01-408-5789, 6515-01-468-1860, 3110-01-691-7314. Verify interchangeability with system specifications before substitution.
What are the specifications of 204105?
Key specifications for 204105: Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: VERTICAL JOINT; Ring Style: CONCENTRIC; Standard Bore Diameter: 8.500 INCHES IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 2815-01-240-2743 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.