Model: 440-160

Dental Expansion Screw

Special Features:

Two-stage expansion screw; used to accomplish palatal expansion up to 14 mm; first stage for a narrow maxillary arch, expands up to 7 mm; replaceable jack screw for second stage expansion, widens arch another 7 mm

Properties:

Overall Width
14.0 millimeters
Furnished Items And Quantity
Screw body 1; short jack screw 1; long jack screw 1; .051 in. Round, angulated stainless steel anchor legs 4; safety adjustment key 1
Usage Design
Orthodontist procedures
Part Name Assigned By Controlling Agency
Screw expansion den crs orthodontist 14mm w no guard spring
Material
Stainless steel
NSN
6520-01-396-4000
Part Number
440-160
Description
Screw,expansion,dental
CAGE
90444

An item designed for treatment of cleft-palate patients and also for patients who have severe maxillary arch width deficiencies. It may have double guide pins to insure linear movement or a single guide pin for partial quadrant and mandibular expansions.

Part 440-160 NSN 6520-01-396-4000

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
42621
FIIG:
T243-A
Concept No.:
App. Key:
ABN
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:
P
PMIC:
A
ESD:
ESD:
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:
M
SPI No.:
MPPWN00001
SPI Rev.:
SPC Mkg:
ZZ
LVL_A:
Z
LVL_B:

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Schedule B and Export
  • Schedule B: 9018490000
  • SITC: 87219
  • End Use: Medicinal equipment
  • NAICS: 339114
  • USDA: 1

Freight Class: Other instruments and appliances, used in dental sciences; and parts and accessories, except dental drill engines, nesoi

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