2805-00-737-8857

Find complete technical information, availability, and procurement data for: 2805-00-737-8857

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2805-00-737-8857
Federal Supply Group
Engines, Turbines, and Components
National Stock Number
2805-00-737-8857
Item Name Code
15884
Assigment Date
01/01/1963 (63 years ago)

An open coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, designed to provide resistance to compression forces. Excludes:springs designed for thermal actuation (springs in which the torsion forces are designed to be counteracted by changes in temperature) and spring, reinforcing, hose.

45.0 chamfer angle in deg, 1.7450 inches minimum and 1.7550 inches maximum outside diameter, 0.1400 inches minimum and 0.1600 inches maximum head height, 0.0312 inches nominal chamfer length, flat head style

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
0.1400 inches minimum and 0.1600 inches maximum
Chamfer Angle In Deg
45.0
Chamfer Length
0.0312 inches nominal
Outside Diameter
1.7450 inches minimum and 1.7550 inches maximum
Seat Angle In Deg
45.0
Stem Style
double grooved
Carbon Relief Groove
not included
Neck Radius
0.3120 inches nominal
Stem Length
4.5515 inches minimum and 4.5965 inches maximum
Stem Diameter
0.3415 inches minimum and 0.3425 inches maximum
Distance From First Groove To Stem End
0.1830 inches nominal
Distance From Second Groove To Stem End
0.4540 inches nominal
First Groove Diameter
0.2980 inches minimum and 0.3040 inches maximum
Second Groove Diameter
0.2740 inches minimum and 0.2800 inches maximum
First Groove Width
0.0950 inches minimum and 0.1050 inches maximum
Second Groove Width
0.0390 inches minimum and 0.0450 inches maximum
Metallic Hardness Rating And Location
30.0 rockwell c minimum seat face
Metallic Hardness Rating And Location
30.0 rockwell c minimum stem
Metallic Hardness Rating And Location
30.0 rockwell c minimum head
Metallic Hardness Rating And Location
40.0 rockwell c maximum head
Metallic Hardness Rating And Location
40.0 rockwell c maximum seat face
Metallic Hardness Rating And Location
40.0 rockwell c maximum stem
Metallic Hardness Rating And Location
45.0 rockwell c nominal tip
Fsc Application Data
gasoline engine

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
4-2670 Engine Poppet Valve
7378857 Engine Poppet Valve

FAQs

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

What is the FSCG of the NSN 2805-00-737-8857?
The FSCG of the NSN 2805-00-737-8857 is 2805
Does the NSN 2805-00-737-8857 have a Schedule B code assigned?
Yes, the Schedule B code is 8409918000
Does NSN 2805-00-737-8857 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 2805-00-737-8857 contain precious materials?
Precious metal content is unknown
Does NSN 2805-00-737-8857 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 2805-00-737-8857 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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