S1665-61663-1
Machine Screw
This page provides complete and verified information for part number S1665-61663-1, NSN 5305-00-639-5307
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 externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
3a thread class, flat chamfer head style, right-hand thread direction, 0.172 inches minimum and 0.202 inches maximum thread length, 0.833 inches minimum and 0.843 inches maximum fastener length
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.172 inches minimum and 0.202 inches maximum
- Fastener Length
- 0.833 inches minimum and 0.843 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.160 inches minimum and 0.170 inches maximum
- Head Height
- 0.090 inches minimum and 0.110 inches maximum
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.125 inches
- Thread Quantity Per Inch
- 40
- Screw Material
- steel comp 4130
- Screw Surface Treatment
- cadmium
- Screw Surface Treatment Document And Classification
- qq-p-416,ty 1 fed spec single treatment response
- Special Features
- cadmium plating modified by 0.00015 in. thk
- 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
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- M - Partial descriptive - reference item identification (type 1a concept)
- 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.
- A500D0
- U - Precious metal content is unknown
- 0006657
- 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
- XX
- 133300
- Z
- 63220
- W - Rating variable
- 72E - Engineer and material handling equipment, test/tool sets and equipment
- 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.
- VZ -
- machinery/machines noi
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for S1665-61663-1
What is the FSCG of the NSN 5305-00-639-5307?
Does the NSN 5305-00-639-5307 have a Schedule B code assigned?
Does NSN 5305-00-639-5307 require demilitarization?
Does NSN 5305-00-639-5307 contain precious materials?
Does NSN 5305-00-639-5307 contain hazardous materials?
When the NSN 5305-00-639-5307 was assigned to the Federal Catalog?
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