27140A

View detailed technical data, stock status, and sourcing information for: 27140A
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2805 Except Aircraft; and Components Gasoline Reciprocating Engines

National Stock Number

2805-00-271-9070

Item Name Code

15884

Assigment Date

01/01/1963 (63 years ago)

0.1280 inches minimum and 0.1310 inches maximum hole diameter, flat head style, 45.0 chamfer angle in deg, 0.1562 inches nominal head height, 0.0312 inches nominal chamfer length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Head Style: flat
Head Height: 0.1562 inches nominal
Chamfer Angle In Deg: 45.0
Hole Diameter: 0.1280 inches minimum and 0.1310 inches maximum
Chamfer Length: 0.0312 inches nominal
Outside Diameter: 1.4794 inches minimum and 1.4894 inches maximum
Seat Angle In Deg: 30.0
Stem Style: drilled
Carbon Relief Groove: not included
Neck Radius: 0.2500 inches nominal
Stem Length: 3.7656 inches nominal
Stem Diameter: 0.3095 inches minimum and 0.3105 inches maximum
Distance From Hole Center To Stem End: 0.2344 inches nominal
Metallic Hardness Rating And Location: 37.0 rockwell c nominal tip
Fsc Application Data: gasoline engine

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2805-00-360-8506	No Name Available	01/01/1963
2805-00-621-4100	No Name Available	01/01/1963

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
27140	Engine Poppet Valve
27140A	Engine Poppet Valve
27220A	Engine Poppet Valve
51845	Engine Poppet Valve
A137	Engine Poppet Valve
H27140A	Engine Poppet Valve
I-132	Engine Poppet Valve
L821T	Engine Poppet Valve
T1095	Engine Poppet Valve
V1025N	Engine Poppet Valve
V843	Engine Poppet Valve
V908	Engine Poppet Valve
VI429	Engine Poppet Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2805-00-271-9070?

The FSCG of the NSN 2805-00-271-9070 is 2805

Does the NSN 2805-00-271-9070 have a Schedule B code assigned?

Yes, the Schedule B code is 8409918000

Does NSN 2805-00-271-9070 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2805-00-271-9070 contain precious materials?

Precious metal content is unknown

Does NSN 2805-00-271-9070 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 2805-00-271-9070 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963