Model: 91858A542

Machine Screw

Special Features:

Between slot depth .046 and .070

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.829 inches and 0.891 inches
Fastener Length
Between 0.969 inches and 1.031 inches
Head Style
Flat countersunk undercut
Head Diameter
Between 0.462 inches and 0.507 inches
Head Height
0.140 inches
Internal Drive Style
Slot
End Application
61150b697465
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Countersink Angle
Between 80.0 degrees and 82.0 degrees
Screw Material
Stainless steel
Screw Material Specification
Qq-s-763 federal specification 1st material response or astma276 assn standard 2nd material response
Thread Series Designator
Unc
NSN
5305-01-469-5486
Part Number
91858A542
Description
Screw,machine
CAGE
3A054

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 91858A542 NSN 5305-01-469-5486

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:
ESD:
MMAC:
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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
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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