Model: 143C003

Optical Instrument Focusing Ring

Properties:

Thread Class
2b
Thread Pitch Diameters
+3.1389/+3.1459 inches
Outside Diameter
3.270 inches
Thread Size
3.1750-18
End Application
An/pvs-20; night vision sight, crew served
Screw Thread Series Designator
Uns
Drive Type
Knurl
Thread Location
Internal
Part Name Assigned By Controlling Agency
Ring, objective focus
NSN
5855-01-503-6171
Part Number
143C003
Description
Focusing Ring,optical Instrument
CAGE
27777

A cylindrical item specially designed to manually adjust the focus on an optical instrument. It may have an internal thread mounting method or machined for a press-fit. It usually has a knurled periphery.

Part 143C003 NSN 5855-01-503-6171

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
45552
FIIG:
T271-J
Concept No.:
App. Key:
JC
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:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
LVL_A:
Z
LVL_B:
Z

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
058110
UFC:
33110
LTL:
200.0
LCL:
--
WCC:
744
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 9014900000
  • SITC: 87412
  • End Use: Marine engines, parts
  • NAICS: 334511
  • USDA: 1

Freight Class: Parts & accessories for direction finding compasses and other navigational instruments and appliances

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