PartsTable TECHNICAL DATA SHEET
NSN 2805-00-452-5176Government record, cited

Ring, Piston2805-00-452-5176

NSN 2805-00-452-5176 · NIIN 004525176 · Part number ATT303100-01
The Hymatic Engineering Company Limited T/a Honeywell Hymatic · FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components · FSG 28 — Engines, Turbines, and Components · CAGE U1585
Government record, cited
NSN 2805-00-452-5176 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-452-5176. Manufacturer of record part number: ATT303100-01.
Also searched as  2805-00-452-5176 · 2805004525176 · NIIN 004525176 · 00-452-5176 · FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · CAGE U1585 · ATT303100-01
Nearby stock numbers  ·
Features
  • Ring,piston — FSC 2805
  • 1 manufacturer part number on file
  • Manufacturer of record: The Hymatic Engineering Company Limited T/a Honeywell Hymatic
Identification
  • NSN: 2805-00-452-5176
  • NIIN: 004525176
  • FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: ATT303100-01
  • Manufacturer: The Hymatic Engineering Company Limited T/a Honeywell Hymatic
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-452-5176, 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 The Hymatic Engineering Company Limited T/a Honeywell Hymatic. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts
Item NameRing,piston
FSC / FSG2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components (FSG 28)
ManufacturersThe Hymatic Engineering Company Limited T/a Honeywell Hymatic (CAGE U1585)
Technical Specifications
ParameterValue
NSN2805-00-452-5176
Primary Part NumberATT303100-01
Item NameRing,piston
FSC / FSG2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components
ManufacturerThe Hymatic Engineering Company Limited T/a Honeywell Hymatic
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Cross-Reference Index
Part NumberManufacturer
ATT303100-01 PRIMARY The Hymatic Engineering Company Limited T/a Honeywell Hymatic (GBR)
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 2805-00-452-5176?

NSN 2805-00-452-5176 is a Ring,piston, manufactured by The Hymatic Engineering Company Limited T/a Honeywell Hymatic, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.

What part numbers are listed for NSN 2805-00-452-5176?

NSN 2805-00-452-5176 has 1 manufacturer part number on file: ATT303100-01 (The Hymatic Engineering Company Limited T/a Honeywell Hymatic).

Is NSN 2805-00-452-5176 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.

What is the DEMIL code for NSN 2805-00-452-5176?

NSN 2805-00-452-5176 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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