PartsTable
Technical Data Sheet
343-0172-000 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
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 head_style: PAN NO. 2, head_height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.562 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-685-4309, 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
343-0172-000
NSN: 5305-00-685-4309
FSC: 5305
CAGE: 95105 — ROCKWELL COLLINS, INC. DIV COLLINS AEROSPACE - MISSION SYSTEMS (USA)
SPECIFICATIONS
head_stylePAN NO. 2
head_height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.562 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.562 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch32
NSN5305-00-685-4309
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 343-0172-000 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
HEAD DIAMETER: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
SCREW MATERIAL: STEEL CORROSION RESISTING
FASTENER LENGTH: 0.562 INCHES NOMINAL IN
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
THREAD LENGTH: 0.562 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
HEAD STYLE: PAN NO. 2
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
SCREW MATERIALSTEEL CORROSION RESISTING
FASTENER LENGTH0.562 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD LENGTH0.562 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEPAN NO. 2
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
HEAD HEIGHT0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
71C0272H11Interchangeable
interchangeable cross-reference
interchangeable
290-12-0041Interchangeable
interchangeable cross-reference
interchangeable
245202Interchangeable
interchangeable cross-reference
interchangeable
P343-0172-00Interchangeable
Same NIIN cross-reference
interchangeable
8914387-14Interchangeable
Same NIIN cross-reference
interchangeable
639122-350Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 343-0172-000?
343-0172-000 is a SCREW,MACHINE.
What parts can replace 343-0172-000?
There are 7 known substitutes for 343-0172-000: 71C0272H11, 290-12-0041, 245202 and 4 more. Substitute compatibility should be verified for your specific system.
Is 343-0172-000 still available?
343-0172-000 is currently cancelled.
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