Model: 3138

Ratchet Wheel

Special Features:

440 f; teeth equally spaced on 0.3125 in. Diameter ratchet with no. 5-40-nc-2 tap left hand item undercut to 0.248 in. Dia, then to 0.1873 in. Diameter hub, first undercut hub 0.005 in. Lg, second hub 0.065 in. Lg

Properties:

Overall Length
0.140 inches
End Application
5815-00-892-1031, teletypewriter, tt-297/ug
Teeth Quantity
36
Material
Steel
Material Specification
Qq-s-763, cond a federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-std-171 military standard single treatment response
NSN
3020-00-739-0807
Part Number
3138
Description
Ratchet Wheel
CAGE
26344

A circular wheel having teeth with which a reciprocating pawl engages to turn the wheel forward and prevent backward motion, or a stationary pawl which engages the wheel to prevent backward motion.

Part 3138 NSN 3020-00-739-0807

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
61511
FIIG:
A512S0
Concept No.:
App. Key:
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

Freight Classification

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

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Schedule B and Export
  • Schedule B: 8487900080
  • SITC: 74999
  • End Use: Industrial machines, other
  • NAICS: 333999
  • USDA: 1

Freight Class: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers

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