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5305-01-727-2188

Socket Head Cap Screw

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Official Item Classification

Name
Socket Head Cap Screw
(NSN) National Stock Number
5305-01-727-2188
(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
02/21/2025 (1 year ago)

hexagon head style, 3a thread class, 1.234 inches minimum and 1.282 inches maximum fastener length, right-hand thread direction, 1.234 inches minimum and 1.282 inches maximum thread length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

1.234 inches minimum and 1.282 inches maximum

Fastener Length

1.234 inches minimum and 1.282 inches maximum

Head Style

hexagon

Head Height

0.125 inches minimum and 0.140 inches maximum

Width Between Flats

0.367 inches minimum and 0.376 inches maximum

Hole Diameter

0.046 inches minimum and 0.056 inches maximum

Internal Drive Style

cruciform ribbed

Nominal Thread Diameter

0.2500 inches

Hole Quantity

3

Hole Type

drilled

Thread Quantity Per Inch

28

Minimum Tensile Strength

160000 pounds per square inch

Hole Configuration Style

hexagon flats

Part Name Assigned By Controlling Agency

screw,hex head,cruciform recess,full thread,alloy steel,160 ksi ftu

Material

steel comp 4140 or steel comp 4340 or steel comp 8740 overall

Material Document And Classification

ams6382 aerospace material spec std 1st material response or ams6415 aerospace material spec std 2nd material response or ams6322,6325 or 6327 aerospace material spec std 3rd material response overall

Surface Treatment

cadmium overall

Surface Treatment Document And Classification

ams-qq-p-416,type ii,class 2 national std/spec single treatment response overall

Thread Series Designator

unjf

Specification/Standard Data

80205-nas1801 professional/industrial association standard

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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
NAS1801-4D9 Socket Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-727-2188?
The FSCG of the NSN 5305-01-727-2188 is 5305
Does the NSN 5305-01-727-2188 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-727-2188 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 5305-01-727-2188 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-727-2188 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 5305-01-727-2188 was assigned to the Federal Catalog?
It was assigned 1 year ago, on Fri, Feb 21, 2025