Model: 7F9578

Extension Helical Spring

Properties:

Inside Diameter
Between 0.415 inches and 0.443 inches
Opening Width
0.590 inches both ends
End Style
Machine loop both ends
Spring Free Length
3.832 inches
Coil Quantity
17-1/2
Design Type
Closed
Load Rating
40.00 pounds
Coil Helix Direction
Right-hand or left-hand
Spring Deflection Rate
66.400 pounds per inch
Spring Free Outside Diameter
Between 0.630 inches and 0.650 inches
Hook Radius
0.190 inches both ends
Spring Length Under Load
3.947 inches
Coil To Hook Inside Length
0.810 inches both ends
Material
Steel
Material Specification
Qq-w-428, type 1 or 2 /d/ federal specification single material response
Surface Treatment
Enamel
Surface Treatment Specification
Tt-e-489 federal specification single treatment response
Style Designator
Cylindrical
NSN
5360-00-321-6470
Part Number
7F9578
Description
Spring,helical,extension
CAGE
11083

An open-or close-coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, so designed to provide resistance to pulling forces. The close-coiled springs may incorporate the special feature of initial tension created between the coils when wound so that an initial load must be applied to separate them. Excludes spring, reinforcing, hose.

Part 7F9578 NSN 5360-00-321-6470

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04227
FIIG:
A02900
Concept No.:
App. Key:
AB
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
177980
UFC:
87430
LTL:
55.0
LCL:
--
WCC:
579
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8710000090
  • SITC: 89111
  • End Use: Military trucks, armored vehicles, etc.
  • NAICS: 336992
  • USDA: 1

Freight Class: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons

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