Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include shape: CYLINDRICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-576-7493, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
343-0021-00
NSN:5305-00-576-7493 FSC:5305 CAGE:13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
shape
CYLINDRICAL
special_features
LENGTH W/2-4 RINGS 2.8IN, 6-8 RINGS 3.5IN, 10-12 RINGS 4.2 IN, 3FT LEAD, CURRENT 5AMPS CONTINUOUS EACH RING 10AMPS OPTIONAL, COIN SILVER RINGS, SILVER GRAPHITE CONTACTS, BALL BEARING, IN
NSN
5305-00-576-7493
COMPONENT DIAGRAM
KEY FEATURES
•
MINIMUM TENSILE STRENGTH: 80000 POUNDS PER SQUARE INCH LBS
•
HEAD DIAMETER: 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
•
HEAD STYLE: PAN NO. 2
•
SCREW SURFACE TREATMENT: PASSIVATE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,300 SERIES FED SPEC SINGLE MATERIAL RESPONSE OR 66,300 SERIES FED STD SINGLE MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD SINGLE MATERIAL RESPONSE
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
SCREW MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM TENSILE STRENGTH
80000 POUNDS PER SQUARE INCH LBS
HEAD DIAMETER
0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
HEAD STYLE
PAN NO. 2
SCREW SURFACE TREATMENT
PASSIVATE
THREAD SERIES DESIGNATOR
UNIFIED NATIONAL COARSE (UNC)
SCREW MATERIAL DOCUMENT AND CLASSIFICATION
QQ-S-763,300 SERIES FED SPEC SINGLE MATERIAL RESPONSE OR 66,300 SERIES FED STD SINGLE MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD SINGLE MATERIAL RESPONSE
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FREQUENTLY ASKED QUESTIONS
What is 343-0021-00?
343-0021-00 is a SCREW,MACHINE.
What parts can replace 343-0021-00?
There are 24 known substitutes for 343-0021-00: MS35233-15, 5120004-06, 674723-15 and 21 more. Substitute compatibility should be verified for your specific system.
Is 343-0021-00 still available?
343-0021-00 is currently cancelled.
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