CBS811-4-14

View detailed technical data, stock status, and sourcing information for: CBS811-4-14
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-891-5503

Item Name Code

16282

Assigment Date

01/25/1967 (59 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

0.774 inches minimum and 0.875 inches maximum thread length, right-hand thread direction, flat chamfer head style, 0.845 inches minimum and 0.875 inches maximum fastener length, 3a thread class

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.774 inches minimum and 0.875 inches maximum
Fastener Length: 0.845 inches minimum and 0.875 inches maximum
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches minimum and 0.190 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 or steel comp xm-7 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf
Specification/Standard Data: 80205-nas1351 professional/industrial association standard

Replaces National Stock Numbers

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

NSN	Name	Date
5305-00-800-6551	No Name Available	02/01/1983

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
12Z1007-159	Socket Head Cap Screw
418750-33	Socket Head Cap Screw
73573-4-14C	Socket Head Cap Screw
947471-1414	Socket Head Cap Screw
965811-413	Socket Head Cap Screw
965811-413C	Socket Head Cap Screw
AIC811-4-14	Socket Head Cap Screw
AOL4166-413	Socket Head Cap Screw
BCP50001-412C	Socket Head Cap Screw
BCP50001-413C	Socket Head Cap Screw
CBS811-4-14	Socket Head Cap Screw
FS2001-4-413C	Socket Head Cap Screw
NAS1351C4-14	Socket Head Cap Screw
S8150-416C14E	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-891-5503?

The FSCG of the NSN 5305-00-891-5503 is 5305

Does the NSN 5305-00-891-5503 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-891-5503 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 5305-00-891-5503 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-891-5503 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 5305-00-891-5503 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Jan 25, 1967