Model: 0.250-20UNC-3A X 0.625LG CRES

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
0.625 inches
Head Style
Flat chamfer
Head Diameter
0.205 inches
Head Height
0.125 inches
Locking Feature
Patch head or pellet head
Internal Drive Style
Hexagon
End Application
Seawolf class ssn
Thread Diameter
0.125 inches
Width Across Flats
0.094 inches
Thready Qty Per Inch (tpi)
20
Hardness Rating
28.0 rockwell c
Material
Steel comp 630
Material Specification
Mil-s-1222, type 2, gr 630 military specification 2nd material response
Thread Series Designator
Unc
NSN
5305-01-500-4489
Part Number
0.250-20UNC-3A X 0.625LG CRES
Description
Screw,cap,socket Head
CAGE
81349

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 0.250-20UNC-3A X 0.625LG CRES NSN 5305-01-500-4489

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
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:
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:
096640
UFC:
50600
LTL:
70.0
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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