MS51491-059
Hexagon Head Cap Screw
This page provides complete and verified information for part number MS51491-059, NSN 5305-01-490-0617
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.
A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. The maximum diameter of the unthreaded portion must not be greater than the nominal thread diameter plus 0.020 inches (0.508 mm). The unthreaded portion must be without locking or wrenching provisions. It may be thread relieved. See also rod, threaded end and rod, continuous thread.
1.500 inches nominal fastener length, right-hand thread direction, 1.500 inches nominal thread length, 2a thread class, hexagon head style
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Thread Class
- 2a
- Thread Direction
- right-hand
- Thread Length
- 1.500 inches nominal
- Fastener Length
- 1.500 inches nominal
- Head Style
- hexagon
- Head Height
- 0.378 inches minimum and 0.403 inches maximum
- Width Between Flats
- 0.922 inches minimum and 0.937 inches maximum
- Nominal Thread Diameter
- 0.625 inches
- Thread Quantity Per Inch
- 11
- Minimum Tensile Strength
- 271000 pounds per square inch
- Material
- steel overall
- Material Document And Classification
- ff-s-85, grade 5 fed spec single material response overall
- Surface Treatment
- zinc and chromate overall
- Surface Treatment Document And Classification
- astmb633-78, type ii assn std all treatment responses overall
- Thread Series Designator
- unc
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.
- 0018257
- 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
- KZ
- 093486
- Z
- 48950
- W - Rating variable
- 573 - Bolts or nuts (iron or steel),(less than 35 feet)
- 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 -
- bolts,nuts or screws, noi (sub 3)
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for MS51491-059
What is the FSCG of the NSN 5305-01-490-0617?
Does the NSN 5305-01-490-0617 have a Schedule B code assigned?
Does NSN 5305-01-490-0617 require demilitarization?
Does NSN 5305-01-490-0617 contain precious materials?
Does NSN 5305-01-490-0617 contain hazardous materials?
When the NSN 5305-01-490-0617 was assigned to the Federal Catalog?
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