Model: 0.312-18UNRC-3A X 1.000

Socket Head Cap Screw

Special Features:

Screw, cap, socket head, self locking (requested name)

Properties:

Thread Class

Fastener Length

1.000 inches

End Application

Mech detent

Thread Diameter

0.312 inches

Thready Qty Per Inch (tpi)

Criticality Code Justification

Zzzx

Material

Nickel alloy

Material Specification

Qq-n-286 gr500 federal specification single material response

Thread Series Designator

Unrc

Departure From Cited Designator

Material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

NSN

5305-01-433-3816

Part Number

0.312-18UNRC-3A X 1.000

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 0.312-18UNRC-3A X 1.000 NSN 5305-01-433-3816

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

RATING VARIABLE

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7508900000
SITC: 69975
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)