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11508581

View detailed technical data, stock status, and sourcing information for: 11508581

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11508581
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-186-5381
Item Name Code
18257
Assigment Date
08/10/1984 (42 years ago)

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.

9.10 millimeters minimum and 10.90 millimeters maximum head height, 12.30 millimeters minimum and 16.00 millimeters maximum thread length, hexagon extended washer head style, right-hand thread direction, 15.30 millimeters minimum and 16.00 millimeters maximum fastener length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction
right-hand
Thread Length
12.30 millimeters minimum and 16.00 millimeters maximum
Fastener Length
15.30 millimeters minimum and 16.00 millimeters maximum
Head Style
hexagon extended washer
Head Height
9.10 millimeters minimum and 10.90 millimeters maximum
Width Between Flats
14.70 millimeters minimum and 15.00 millimeters maximum
Extended Washer Diameter
21.50 millimeters maximum
Extended Washer Thickness
1.50 millimeters minimum
Nominal Thread Diameter
10.0 millimeters
Thread Pitch In Millimeters
1.5
Material
steel overall
Material Document And Classification
gm 500-m(9.8),fscm 11862 mfr ref single material response overall
Surface Treatment
phosphate overall
Thread Series Designator
m

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-01-155-5242 No Name Available 08/01/1986
5305-01-251-9222 No Name Available 07/01/1997

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
11503451 Hexagon Head Cap Screw
11508581 Hexagon Head Cap Screw
11515763 Hexagon Head Cap Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-186-5381?
The FSCG of the NSN 5305-01-186-5381 is 5305
Does the NSN 5305-01-186-5381 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-186-5381 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 5305-01-186-5381 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-186-5381 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 5305-01-186-5381 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Fri, Aug 10, 1984

Professional Distribution

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