NSN 2805-00-856-4766 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-856-4766. Manufacturer of record part number: 4274AC1NPT.
Also searched as2805-00-856-4766 ·
2805008564766 ·
NIIN 008564766 ·
00-856-4766 ·
FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · CAGE 55355 · 4274AC1NPT
Thread Size and Series/type Designator: 1-11-1/2 NPT
1 manufacturer part number on file
Manufacturer of record: Emcor Enclosures Llc
Identification
NSN: 2805-00-856-4766
NIIN: 008564766
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 4274AC1NPT
Manufacturer: Emcor Enclosures Llc
General Description
The Breather, cataloged under National Stock Number 2805-00-856-4766, 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 Emcor Enclosures 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
COVER,FLYWHEEL
2805-00-001-6154
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 2805-00-856-4766?
NSN 2805-00-856-4766 is a Breather, manufactured by Emcor Enclosures Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
What part numbers are listed for NSN 2805-00-856-4766?
NSN 2805-00-856-4766 has 1 manufacturer part number on file: 4274AC1NPT (Emcor Enclosures Llc).
What are the specifications of 4274AC1NPT?
Key specifications for 4274AC1NPT: Overall Height: 2.312 INCHES MAXIMUM IN; Outside Diameter: 3.125 INCHES MAXIMUM IN; Connection Type: THREADED; Body Material: STEEL. 4 specifications are documented in the U.S. Government catalog.
Is NSN 2805-00-856-4766 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.