A28085-1

Flat Washer

This page provides complete and verified information for part number A28085-1, NSN 5310-01-166-2616

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.

A28085-1
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-01-166-2616
Item Name Code
13393
Assigment Date
11/09/1983 (42 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

rectangular cross-sectional shape style, 0.188 inches minimum and 0.191 inches maximum hole diameter, round center hole shape style, round peripheral shape style, 0.085 inches minimum and 0.087 inches maximum thickness

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Cross-Sectional Shape Style
rectangular
Hole Diameter
0.188 inches minimum and 0.191 inches maximum
Peripheral Shape Style
round
Center Hole Shape Style
round
Thickness
0.085 inches minimum and 0.087 inches maximum
Overall Diameter
0.335 inches minimum and 0.355 inches maximum
Material
steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 overall
Material Document And Classification
em 3004,fscm 94697 mfr ref single material 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
1 - Full descriptive item identification
Automatic Data Processing Point
0 - Represents items with no adp components
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
A022B0
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0013393
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
7318220000

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
194160
National Motor Freight Classification Sub-Item Number
X
Uniform Freight Classification Item Number
55210
National Motor Freight Class Rating
U - 50.0
Water Commodity
713 - Metal hardware
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
washer or gaskets, iron or steel,

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for A28085-1

What is the FSCG of the NSN 5310-01-166-2616?
The FSCG of the NSN 5310-01-166-2616 is 5310
Does the NSN 5310-01-166-2616 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-01-166-2616 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 5310-01-166-2616 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-166-2616 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 5310-01-166-2616 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Wed, Nov 9, 1983

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