Model: PMT738-3U12

Machine Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.844 inches and 0.875 inches
Fastener Length
Between 0.844 inches and 0.875 inches
Head Style
Pan
Head Diameter
Between 0.357 inches and 0.373 inches
Head Height
Between 0.122 inches and 0.133 inches
Internal Drive Style
Cross recess type ii
End Application
B-2 bomber
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
60000 pounds per square inch
Part Name Assigned By Controlling Agency
Screw, machine-pan head, cross-recessed, carbon steel, zinc plated, unf-2a
Screw Material
Steel
Screw Material Specification
Fed standard no 66 federal standard single material response
Bearing Surface Of Head Surface Treatment
Zinc
Head Surface Treatment
Zinc
Screw Surface Treatment
Zinc
Shank Surface Treatment
Zinc
Bearing Surface Of Head Surface Treatment Specification
Astm b633-78, type 2 assn standard single treatment response
Head Surface Treatment Specification
Astm b633-78, type 2 assn standard single treatment response
Screw Surface Treatment Specification
Astm b633-78, type 2 assn standard single treatment response
Shank Surface Treatment Specification
Astm b633-78, type 2 assn standard single treatment response
Thread Series Designator
Unf
NSN
5305-01-603-1439
Part Number
PMT738-3U12
Description
Screw,machine
CAGE
1RC86

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 PMT738-3U12 NSN 5305-01-603-1439

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:
A
ESD:
A
ESD:
A
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:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
72E
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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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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