Model: 309R284H01

Externally Relieved Body Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.360 inches and 0.400 inches
Fastener Length
Between 0.460 inches and 0.540 inches
Head Style
Hexagon
Head Height
Between 0.060 inches and 0.100 inches
Width Between Flats
Between 0.480 inches and 0.520 inches
First Diameter From Head
Between 0.135 inches and 0.145 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.060 inches and 0.180 inches
Internal Drive Style
W/o internal drive
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Externally Relieved Body Diameter Quantity
1
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 303
Material Specification
Astm a582 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
294193-1 fscm 97942 mfr ref single treatment response
Thread Series Designator
Unf
NSN
5305-00-116-4002
Part Number
309R284H01
Description
Screw,externally Relieved Body
CAGE
97942

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Part 309R284H01 NSN 5305-00-116-4002

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01852
FIIG:
A003B0
Concept No.:
App. Key:
SE
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:
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:
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:
713
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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