STD2090

Hexagon Plain Nut

This page provides complete and verified information for part number STD2090, NSN 5310-00-059-5273

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.

STD2090
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-059-5273
Item Name Code
01857
Assigment Date
04/14/1972 (54 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

3b thread class, 0.380 inches nominal nut height, right-hand thread direction, hexagon nut style, 0.750 inches nominal width across flats

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
Nut Style
hexagon
Nut Height
0.380 inches nominal
Width Across Flats
0.750 inches nominal
Thread Series
unf
Thread Quantity Per Inch
20
Hardness Rating
38.0 rockwell c minimum and 42.0 rockwell c maximum
Nominal Thread Size
0.500 inches
Countersink Angle
110.0 degrees nominal nut
Bearing Surface Type
washer faced
Material
steel comp 8735 or steel comp 8740 overall
Material Document And Classification
ams 6320 assn std 1st material response or ams 6322 assn std 2nd material response overall
Surface Treatment
cadmium overall
Surface Treatment Document And Classification
ams 2400 assn std 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
K - Full descriptive - reference item identification
Source of Supply
S9I - Defense industrial supply center philadelphia, pennsylvania 19111
Demilitarization
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.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A021A0
Precious Metals Indicator
U - Precious metal content is unknown
Pseudo Item Name Code
0001857
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
7318160000

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
KZ
National Motor Freight Classification Item Number
093486
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
48950
National Motor Freight Class Rating
W - Rating variable
Less than Car Load Rating
U - 50.0
Water Commodity
573 - Bolts or nuts (iron or steel),(less than 35 feet)
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
BZ -
National Motor Freight Description
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 STD2090

What is the FSCG of the NSN 5310-00-059-5273?
The FSCG of the NSN 5310-00-059-5273 is 5310
Does the NSN 5310-00-059-5273 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-059-5273 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 5310-00-059-5273 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-059-5273 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 5310-00-059-5273 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Fri, Apr 14, 1972

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