Model: MS13931-8

Piston Ring

Properties:

Cross Sectional Shape
Convex face, double scraper, ventilated oil control
Ring Style
Concentric
Radial Wall Thickness
Between 0.1370 inches and 0.1470 inches
Overall Width
Between 0.1545 inches and 0.1555 inches
Standard Bore Diameter
3.250 inches
Bore Diameter Oversize
0.020 inches
Joint Style
Vertical joint
Oil Passage Type And Quantity
1 groove outside periphery
Material
Iron
Material Specification
Ams 7310 assn standard single material response
NSN
2805-00-528-5806
Part Number
MS13931-8
Description
Ring,piston
CAGE
96906

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

Part MS13931-8 NSN 2805-00-528-5806

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
11459
FIIG:
A08400
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:
126700
UFC:
64230
LTL:
85.0
LCL:
85.0
WCC:
593
TCC:
Z
SHC:
5
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8409918000
  • SITC: 71391
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Parts for spark-ignition internal combustion piston engines, nesoi

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