78783M-720
Extended Washer Self-Locking Nut
This page provides complete and verified information for part number 78783M-720, NSN 5310-01-059-7517
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 internally threaded item with a cylindrical and/or square, hexagonal, octagonal, or dodecagonal outer periphery (parallel to the threaded axis) a portion(s) of which may or may not be enlarged, forming a flange(s) and/or shoulder(s). Items not having an enlarged outer portion may be threaded, a part of the full length, or tapped from both ends. Items having an enlarged outer portion (flange(s) or shoulder(s)) may be threaded the full length, threaded a part of the full length, or tapped from both ends. Items tapped from both ends shall have either right-hand threads on both ends or left-hand threads on both ends. For items conforming to any of the above and having a length overall exceeding two times the largest outside diameter or width across flats, use post, electrical-mechanical equipment. For items with an outside contour that is the same the full length, having a continuous thread through its entire length, and the length does not exceed two times the diameter or width across the flats use nut (1), plain (as modified). Excludes:nut (1), plain, cap. See also turnbuckle body.
prevailing torque all metal design locking feature, 0.645 inches maximum washer outside diameter, 3b thread class, dry film lubricant lubrication, 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 all metal design
- Washer Outside Diameter
- 0.645 inches maximum
- Lubrication
- dry film lubricant
- Overall Height
- 0.204 inches minimum and 0.234 inches maximum
- Nut Style
- slotted hexagon
- Washer Thickness
- 0.025 inches nominal
- Width Across Flats
- 0.492 inches minimum and 0.504 inches maximum
- Temp Rating
- 450.0 fahrenheit maximum
- Thread Series
- unjf
- Thread Quantity Per Inch
- 20
- Nominal Thread Size
- 0.438 inches
- Material
- steel overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416 fed spec single treatment response overall
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
- 0029730
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 7318160000
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 78783M-720
What is the FSCG of the NSN 5310-01-059-7517?
Does the NSN 5310-01-059-7517 have a Schedule B code assigned?
Does NSN 5310-01-059-7517 require demilitarization?
Does NSN 5310-01-059-7517 contain precious materials?
Does NSN 5310-01-059-7517 contain hazardous materials?
When the NSN 5310-01-059-7517 was assigned to the Federal Catalog?
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