CBS811-04-21
Socket Head Cap Screw
This page provides complete and verified information for part number CBS811-04-21, NSN 5305-01-246-3864
You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
flat chamfer head style, 1.359 inches minimum and 1.406 inches maximum fastener length, 1.309 inches minimum and 1.406 inches maximum thread length, 3a thread class, right-hand thread direction
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 1.309 inches minimum and 1.406 inches maximum
- Fastener Length
- 1.359 inches minimum and 1.406 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.176 inches minimum and 0.183 inches maximum
- Head Height
- 0.108 inches minimum and 0.112 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.112 inches
- Width Across Flats
- 0.0937 inches minimum and 0.0952 inches maximum
- Thread Quantity Per Inch
- 40
- Minimum Tensile Strength
- 160000 pounds per square inch
- Material
- iron alloy 660 overall
- Material Document And Classification
- ams5737 assn std single material response overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response overall
- Thread Series Designator
- unrc
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Automatic Data Processing Point
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 1 - Full descriptive item identification
- 0 - Represents items with no adp components
- A - 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.
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A003B0
- A - Item does not contain precious metal.
- 0016282
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 7318152000
Freight Information
Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.
- Major Organizational Entity
- National Motor Freight Classification Item Number
- National Motor Freight Classification Sub-Item Number
- Uniform Freight Classification Item Number
- National Motor Freight Class Rating
- Water Commodity
- Type of Cargo
- Special Hand
- Air Dimension
- Air Commodity
- National Motor Freight Description
- KH
- 096640
- X
- 50600
- Q - 70.0
- 713 - Metal hardware
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- BZ -
- screws, iron or steel
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for CBS811-04-21
What is the FSCG of the NSN 5305-01-246-3864?
Does the NSN 5305-01-246-3864 have a Schedule B code assigned?
Does NSN 5305-01-246-3864 require demilitarization?
Does NSN 5305-01-246-3864 contain precious materials?
Does NSN 5305-01-246-3864 contain hazardous materials?
When the NSN 5305-01-246-3864 was assigned to the Federal Catalog?
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