Model: 91275A537

Socket Head Cap Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.400 inches
Fastener Length
0.500 inches
Head Style
Button
Head Diameter
Between 0.419 inches and 0.437 inches
Head Height
Between 0.122 inches and 0.132 inches
Spline Major Diameter
0.183 inches
Internal Drive Style
Torx
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Color
Black
Material
Steel
Surface Treatment
Oxide
Thread Series Designator
Unc
NSN
5305-01-439-2887
Part Number
91275A537
Description
Screw,cap,socket Head
CAGE
39428

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 91275A537 NSN 5305-01-439-2887

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:
BA
CRITL:
X

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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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