Model: 90523

Piston Ring

Properties:

Cross Sectional Shape
Plain rectangular, straight face
Ring Style
Concentric
Radial Wall Thickness
Between 0.0380 inches and 0.0400 inches
Overall Width
Between 0.0460 inches and 0.0470 inches
Standard Bore Diameter
0.750 inches
Joint Style
Vertical joint
Material
Iron
Fsc Application Data
Rack, bomb ejector, aircraft
NSN
1095-00-589-1254
Part Number
90523
Description
Ring,piston
CAGE
76602

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 90523 NSN 1095-00-589-1254

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:
685
TCC:
Z
SHC:
5
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 9305913030
  • SITC: 89199
  • End Use: Tanks, artillery, missiles, rockets, guns and ammunition
  • NAICS: 332994
  • USDA: 1

Freight Class: Parts and accessories of military weapons of heading 9301, nesoi

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