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4SP949R98

Machine Screw

This page provides complete and verified information for part number 4SP949R98, NSN 5305-00-543-5821

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.

4SP949R98
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-543-5821
Item Name Code
06657
Assigment Date
01/01/1963 (63 years ago)

round head style, 2a thread class, 0.250 inches maximum thread length, 0.250 inches nominal fastener length, 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
2a
Thread Direction
right-hand
Thread Length
0.250 inches maximum
Fastener Length
0.250 inches nominal
Head Style
round
Head Diameter
0.146 inches minimum and 0.162 inches maximum
Head Height
0.069 inches nominal
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.086 inches
Thread Quantity Per Inch
56
Screw Material
steel comp 302 or steel comp 304 or steel comp 321
Screw Surface Treatment
passivate
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
1 - Full descriptive 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
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
7318152000

Freight Information

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

Major Organizational Entity
XX
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
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
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 4SP949R98

What is the FSCG of the NSN 5305-00-543-5821?
The FSCG of the NSN 5305-00-543-5821 is 5305
Does the NSN 5305-00-543-5821 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-543-5821 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 5305-00-543-5821 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-543-5821 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 5305-00-543-5821 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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