PartsTable TECHNICAL DATA SHEET
NSN 2805-01-252-3857Government record, cited

Engine Block Assembly, Gasoline2805-01-252-3857

NSN 2805-01-252-3857 · NIIN 012523857 · Part number 4845 10 300
Mazda Motor Corporation · FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components · FSG 28 — Engines, Turbines, and Components · CAGE J3085
Government record, cited
NSN 2805-01-252-3857 — this item is cataloged by the U.S. Government under National Stock Number 2805-01-252-3857. Manufacturer of record part number: 4845 10 300.
Also searched as  2805-01-252-3857 · 2805012523857 · NIIN 012523857 · 01-252-3857 · FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · CAGE J3085 · 4845 10 300 · 9008888-01
Nearby stock numbers  ·
Features
  • Engine Block Assembly,gasoline — FSC 2805
  • Closed System Hull Cooling Feature: INCLUDED
  • Flywheel: NOT INCLUDED
  • Cooling Method: LIQUID
  • Valve Arrangement for Which Designed: L
  • Crankshaft Rotation Direction: CLOCKWISE
  • Cylinder Quantity: 4
  • Cylinder Arrangement: STRAIGHT IN-LINE
Identification
  • NSN: 2805-01-252-3857
  • NIIN: 012523857
  • FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 4845 10 300
  • Manufacturer: Mazda Motor Corporation
General Description

The Engine Block Assembly,gasoline, cataloged under National Stock Number 2805-01-252-3857, 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 Mazda Motor Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-01-252-3857
Primary Part Number4845 10 300
Item NameEngine Block Assembly,gasoline
FSC / FSG2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components
ManufacturerMazda Motor Corporation
StatusACTIVE
Closed System Hull Cooling FeatureINCLUDED
FlywheelNOT INCLUDED
Cooling MethodLIQUID
Valve Arrangement for Which DesignedL
Crankshaft Rotation DirectionCLOCKWISE
Cylinder Quantity4
Cylinder ArrangementSTRAIGHT IN-LINE
Supercharger Usage FeatureNOT PROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
4845 10 300 Mazda Motor Corporation (JPN)
Reference documents
ReferenceMeaning
9008888-01 3/2 Design control — primary reference
U.S. Government activity
4845 10 300 5/9 Secondary reference
Toyo Kogyo Co. Ltd
No interchangeability data on file.
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.
2805-00-010-2959
2805-00-010-2959 · Item name not on file
2805-00-066-3426
TAPPET,ENGINE POPPET VALVE
2805-00-326-0797
SPRING,COUPLING FLA
2805-00-395-7778
BALL,BY-PASS VALVE
2805-00-422-9321
RING SET,PISTON
2805-00-447-9114
VALVE,POPPET,ENGINE
2805-00-448-0786
CAMSHAFT
2805-00-561-9463
GUIDE,VALVE STEM

Frequently Asked Questions

What is NSN 2805-01-252-3857?

NSN 2805-01-252-3857 is a Engine Block Assembly,gasoline, manufactured by Mazda Motor Corporation, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.

What part numbers are listed for NSN 2805-01-252-3857?

NSN 2805-01-252-3857 has 1 manufacturer part number on file: 4845 10 300 (Mazda Motor Corporation).

What are the specifications of 4845 10 300?

Key specifications for 4845 10 300: Closed System Hull Cooling Feature: INCLUDED; Flywheel: NOT INCLUDED; Cooling Method: LIQUID; Valve Arrangement for Which Designed: L. 8 specifications are documented in the U.S. Government catalog.

Is NSN 2805-01-252-3857 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.
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