6552B

Machine Screw

This page provides complete and verified information for part number 6552B, NSN 5305-01-059-1908

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.

6552B
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-059-1908
Item Name Code
06657
Assigment Date
04/08/1978 (48 years ago)

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.

0.500 inches nominal fastener length, 2a thread class, 0.450 inches minimum thread length, right-hand thread direction, binding head style

Characteristics

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

Thread Class
2a
Thread Direction
right-hand
Thread Length
0.450 inches minimum
Fastener Length
0.500 inches nominal
Head Style
binding
Head Diameter
0.290 inches nominal
Head Height
0.132 inches nominal
Internal Drive Style
slot
Nominal Thread Diameter
0.138 inches
Thread Quantity Per Inch
40
Screw Material
plastic
Thread Series Designator
unf

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
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
A500D0
Precious Metals Indicator
U - Precious metal content is unknown
Pseudo Item Name Code
0006657
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
3926909987

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
133300
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
63220
National Motor Freight Class Rating
W - Rating variable
Water Commodity
72E - Engineer and material handling equipment, test/tool sets and equipment
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
VZ -
National Motor Freight Description
machinery/machines noi

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 6552B

What is the FSCG of the NSN 5305-01-059-1908?
The FSCG of the NSN 5305-01-059-1908 is 5305
Does the NSN 5305-01-059-1908 have a Schedule B code assigned?
Yes, the Schedule B code is 3926909987
Does NSN 5305-01-059-1908 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 5305-01-059-1908 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-059-1908 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 5305-01-059-1908 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Sat, Apr 8, 1978

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