Model: 278-20

Clevis Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.323 inches and 0.363 inches
Fastener Length
Between 1.833 inches and 1.853 inches
Head Style
Button
Head Diameter
Between 0.365 inches and 0.385 inches
Head Height
Between 0.083 inches and 0.103 inches
Groove Diameter
0.141 inches
Shank Unthreaded Hole Diameter
0.070 inches first hole and 0.080 inches first hole
Single Shear Strength
2125 pounds per square inch
Internal Drive Style
Slot
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
0.136 inches first hole and 0.146 inches first hole
Material
Steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4140 or steel comp 4130 or steel comp 4037
Material Specification
Mil-s-6049 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-5626 military specification 4th material response or mil-s-6758 military specification 5th material response or mil-s-8695 military specification 6th material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 cl 3 federal specification 5th treatment response
Thread Series Designator
Unf
Departure From Cited Document
Thread t per mil-s-7742 except major diameter is not to exceed max allow bolt shank d1a
NSN
5306-00-151-2308
Part Number
278-20
Description
Bolt,clevis
CAGE
45934

An externally threaded fastener whose threaded and unthreaded portions are of one nominal diameter and are separated by a narrow circumferential groove. The head is designed to be held or driven with an inserted driver. Excludes bolt, shear.

Part 278-20 NSN 5306-00-151-2308

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06662
FIIG:
A003B0
Concept No.:
App. Key:
BB
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:
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:
1.6000lbs
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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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