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5305-01-688-0528

Socket Head Cap Screw

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Official Item Classification

Name
Socket Head Cap Screw
(NSN) National Stock Number
5305-01-688-0528
(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
04/30/2020 (6 years ago)

0.250 inches nominal thread length, 0.978 inches nominal fastener length, right-hand thread direction, 2a thread class, hexagon head style

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.250 inches nominal

Fastener Length

0.978 inches nominal

Head Style

hexagon

Head Height

0.187 inches nominal

Width Between Flats

0.309 inches nominal

Internal Drive Style

hexagon

End Item Identification

5840-01-669-5071

Nominal Thread Diameter

0.190 inches

Width Across Flats

0.157 inches nominal

Thread Quantity Per Inch

32

Material

aluminum alloy 6061 ring

Material

steel comp 302 spring

Material

steel corrosion resisting fastener

Material Document And Classification

ams5731 assn std single material response or ams5735 assn std single material response or ams5736 assn std single material response or ams5737 assn std single material response fastener

Material Document And Classification

qq-a-225-8 fed spec single material response ring

Material Document And Classification

qq-w-423, cond b fed spec single material response or astm-a-313 assn std single material response spring

Surface Treatment

anodize ring

Surface Treatment

passivate fastener

Surface Treatment Document And Classification

mil-a-8625 type i, class 1 mil spec single treatment response ring

Surface Treatment Document And Classification

qq-p-35 fed spec single treatment response fastener

Thread Series Designator

unf

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
FTH1085 Socket Head Cap Screw
FTH1085-10-3-11 Socket Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-688-0528?
The FSCG of the NSN 5305-01-688-0528 is 5305
Does the NSN 5305-01-688-0528 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-688-0528 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 5305-01-688-0528 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-688-0528 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 5305-01-688-0528 was assigned to the Federal Catalog?
It was assigned 6 years ago, on Thu, Apr 30, 2020