HY-521-12
Clinch Self-Locking Nut
This page provides complete and verified information for part number HY-521-12, NSN 5310-00-059-0857
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 nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole. An integral feature is incorporated for locking.
0.135 inches nominal pilot length, 3b thread class, 0.273 inches nominal pilot diameter, prevailing torque with nonmetallic insert locking feature, 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
- 3b
- Thread Direction
- right-hand
- Locking Feature
- prevailing torque with nonmetallic insert
- Pilot Diameter
- 0.273 inches nominal
- Pilot Length
- 0.135 inches nominal
- Nut Style
- clinch
- Nut Height
- 0.385 inches nominal
- Width Across Flats
- 0.375 inches nominal
- Thread Series
- unc
- Thread Quantity Per Inch
- 32
- Nominal Thread Size
- 0.164 inches
- Material
- aluminum alloy 2017 nut
- Material
- fiber or plastic locking insert
- Material Document And Classification
- qq-a-225/5,alloy 2017 fed spec 2nd material response nut
- Surface Treatment
- anodize nut
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 1 - Full descriptive item identification
- 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.
- A021A0
- U - Precious metal content is unknown
- 0015892
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 7616995195
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
- XX
- 013540
- X
- 05680
- 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 -
- alum nuts
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for HY-521-12
What is the FSCG of the NSN 5310-00-059-0857?
Does the NSN 5310-00-059-0857 have a Schedule B code assigned?
Does NSN 5310-00-059-0857 require demilitarization?
Does NSN 5310-00-059-0857 contain precious materials?
Does NSN 5310-00-059-0857 contain hazardous materials?
When the NSN 5310-00-059-0857 was assigned to the Federal Catalog?
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Price & Availability
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