Model: 50253-1018-5.30

Shoulder Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.000 inches
Fastener Length
Between 0.646 inches and 0.655 inches
Head Style
Flat extended washer
Head Diameter
Between 0.160 inches and 0.170 inches
Head Height
0.185 inches
Extended Washer Diameter
Between 0.186 inches and 0.188 inches
Extended Washer Thickness
0.060 inches
Shoulder Diameter
0.135 inches first shoulder and 0.145 inches first shoulder
Shoulder Length
0.125 inches first shoulder
Internal Drive Style
Hexagon
Thread Diameter
0.112 inches
Width Across Flats
Between 0.937 inches and 0.952 inches
Thready Qty Per Inch (tpi)
40
Shoulder Shape
Round first shoulder
Color
Red head
Material
Steel comp 303 or steel comp 410
Material Specification
Astm a582 assn standard 1st material response or qq-s-763 federal specification 2nd material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unc
NSN
5305-01-265-4799
Part Number
50253-1018-5.30
Description
Screw,shoulder
CAGE
61081

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part 50253-1018-5.30 NSN 5305-01-265-4799

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
Concept No.:
App. Key:
SL
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:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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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