Model: 1522521-1

Machine Screw

Special Features:

Bearing surface of head undercut 0.199 in. Min, 0.226 in. Max dia. By 0.024 in. Min, 0.032 in. Max deep

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.188 inches and 0.250 inches
Fastener Length
0.250 inches
Head Style
Binding
Head Diameter
Between 0.275 inches and 0.290 inches
Head Height
Between 0.071 inches and 0.090 inches
Internal Drive Style
Slot
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Screw Material
Copper alloy 360
Screw Material Specification
Qq-b-626, 1/2 h federal specification single material response
Screw Surface Treatment
Cadmium
Screw Surface Treatment Specification
Qq-p-416 type 2 cl 3 federal specification single treatment response
Thread Series Designator
Unc
NSN
5305-00-153-3492
Part Number
1522521-1
Description
Screw,machine
CAGE
10001

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part 1522521-1 NSN 5305-00-153-3492

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
Concept No.:
App. Key:
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:
AB
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:
096630
UFC:
50590
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7415338550
  • SITC: 69433
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Other copper screws (not for wood) bolts and nuts

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