Model: 2.5-4.5UNC-2AX5.00NICUAL

Hexagon Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

6.423 inches

Fastener Length

3.50 inches

Head Style

Hexagon

Head Height

1.423 inches

Width Between Flats

3.380 inches

Nonstandard Thread Pitch Diameter

+2.250 to 2.255 inches

Thready Qty Per Inch (tpi)

4.50

Criticality Code Justification

Zzzx

Material

Nickel alloy

Thread Series Designator

Unc

Departure From Cited Designator

Material controlled iaw ss800-ag-man-010/p-9290 system certification produres and criteria manual for deep submergence systems; critical item for safety and survival of deep submergence research and rescue vehicles as differentiated by special test features

NSN

5305-01-641-7679

Part Number

2.5-4.5UNC-2AX5.00NICUAL

Description

Screw,cap,hexagon Head

CAGE

81349

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Part 2.5-4.5UNC-2AX5.00NICUAL NSN 5305-01-641-7679

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

18257

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

096640

UFC:

50600

LTL:

70.0

LCL:

WCC:

713

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)