Model: 77857

Piston Pin

Properties:

Body Style
Chamfered ends
Casehardening Indicator
Casehardened
Countersink Angle In Deg
45.0
Outside Diameter
Between 1.12430 inches and 1.12460 inches
End Chamfer Angle In Deg
45.0
Bore Diameter
Between 0.7620 inches and 0.7630 inches
Body Length
Between 3.7450 inches and 3.7500 inches
Metallic Hardness Rating
73.0 rockwell superficial 30-n
Bore Style
Inside chamfer straight-thru bore
Material
Steel, ams6274 or ams6294 or sae8620aq
Material
Steel, ams6274 or ams6294 or sae8620aq
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
NSN
2810-00-857-3270
Part Number
77857
Description
Pin,piston
CAGE
80254

A cylindrically-shaped metal item, usually tubular, designed to form a pivoting connection between the piston and connecting rod of an internal combustion engine, compressor and like items. May include oil sealing or pin retaining plugs. Excludes bushing, sleeve; pin, grooved, headless; pin, straight, headless; and pin, hollow.

Part 77857 NSN 2810-00-857-3270

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16414
FIIG:
A09500
Concept No.:
App. Key:
A
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
85.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8409100080
  • SITC: 71319
  • End Use: Engines and turbines for military aircraft
  • NAICS: 336412
  • USDA: 1

Freight Class: Parts for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil

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