Model: 3-51221-1

Extension Helical Spring

Properties:

Inside Diameter
Between 0.267 inches and 0.279 inches
Opening Width
0.144 inches first end
Opening Width
0.219 inches second end
End Style
Long round hook both ends
Spring Free Length
Between 1.670 inches and 1.720 inches
Coil Quantity
29
Design Type
Closed
Load Rating
5.00 pounds
Coil Helix Direction
Right-hand or left-hand
Spring Deflection Rate
3.380 pounds per inch
Spring Free Outside Diameter
Between 0.345 inches and 0.357 inches
Material
Steel comp 631
Material Specification
Ams 5673 assn standard single material response
Style Designator
Cylindrical
NSN
5360-00-888-0113
Part Number
3-51221-1
Description
Spring,helical,extension
CAGE
0JRC1

Part 3-51221-1 NSN 5360-00-888-0113

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:
177970
UFC:
87420
LTL:
NO RATING
LCL:
--
WCC:
579
TCC:
Z
SHC:
9
ACC:
Construction Materials

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