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5305-01-556-1045

Socket Head Cap Screw

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Official Item Classification

Name
Socket Head Cap Screw
(NSN) National Stock Number
5305-01-556-1045
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
16282
(FIIG) Federal Item Identification Guide
A003B0
Date
09/24/2007 (19 years ago)

flat chamfer head style, 1.375 inches minimum thread length, right-hand thread direction, 2.125 inches nominal fastener length, 3a thread class

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

1.375 inches minimum

Fastener Length

2.125 inches nominal

Head Style

flat chamfer

Head Diameter

0.642 inches minimum and 0.656 inches maximum

Head Height

0.430 inches minimum and 0.437 inches maximum

Hole Diameter

0.061 inches minimum and 0.067 inches maximum

Internal Drive Style

hexagon

Nominal Thread Diameter

0.437 inches

Width Across Flats

0.375 inches nominal

Hole Quantity

6

Hole Type

drilled

Thread Quantity Per Inch

20

Hole Configuration Style

round internal hexagon

Material

iron alloy 660 overall

Material Document And Classification

ams 5731 assn std single material response or ams 5737 assn std single material response overall

Precious Material And Location

overall silver

Precious Material

silver

Surface Treatment

silver overall

Surface Treatment Document And Classification

ams 2411 assn std single treatment response overall

Thread Series Designator

unrf

Specification/Standard Data

80205-nas1351 professional/industrial association standard

Regulatory Compliance

Precious Metals Indicator
S

Item contains silver.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0016282

Related Hardware Products

Part Number Description
NAS1351N7H34S Socket Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-556-1045?
The FSCG of the NSN 5305-01-556-1045 is 5305
Does the NSN 5305-01-556-1045 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-556-1045 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-01-556-1045 contain precious materials?
Item contains silver.
Does NSN 5305-01-556-1045 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-01-556-1045 was assigned to the Federal Catalog?
It was assigned 19 years ago, on Mon, Sep 24, 2007