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CBS811-4-14 Socket Head Cap Screw

5305-00-891-5503

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Official Item Classification

Name
Socket Head Cap Screw
Part Number
CBS811-4-14
(NSN) National Stock Number
5305-00-891-5503
(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
01/25/1967 (59 years ago)

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

Specs & Compatibility

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

Replacement For

Part Number Description
5305-00-800-6551 No Name Available 02/01/1983

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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

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Frequently Asked Questions

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