Model: 490

Electrical Contact Ring Assembly

Properties:

Width
0.218 inches
Overall Height
1.281 inches
Diameter
4.063 inches
Overall Diameter
4.250 inches
Mounting Configuration
Four 0.128 in. Diameter mtg holes, 0.203 in. Diameter counter bore 0.063 in. Deep and countersunk for no. 4 parker head selftapping screw, equally spaced on 1.750 in. Radius
Contact Ring Quantity
3
Ring Surface Material
Silver
NSN
5977-00-552-4511
Part Number
490
Description
Ring Assembly,electrical Contact
CAGE
76473

Two or more electrical contact rings on a common mounting or mounted on each other. May include contacts, integral brushes, brush holder assemblies, and connectors.

Part 490 NSN 5977-00-552-4511

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00313
FIIG:
T386-G
Concept No.:
App. Key:
GA
Cond. Code:
1
Status:
A

Material Classification

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
70.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8545900000
  • SITC: 77886
  • End Use: Electric apparatus
  • NAICS: 335991
  • USDA: 1

Freight Class: Electrical carbon or graphite articles,nesoi

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