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PartsTable / COMPONENT / 6159-D ITEM 9
6159-D ITEM 9 ✓ 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,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEXAGON, head_height: 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 4.139 INCHES NOMINAL IN, fastener_length: 4.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-355-3670, 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
6159-D ITEM 9
NSN: 5305-01-355-3670
FSC: 5305
CAGE: 17798 — LEBUS INTERNATIONAL, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleHEXAGON
head_height0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
thread_class2A A
thread_length4.139 INCHES NOMINAL IN
fastener_length4.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-355-3670
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6159-D ITEM 9 · 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
•
THREAD LENGTH: 4.139 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD QUANTITY PER INCH: 18
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH BETWEEN FLATS: 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.250 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH4.139 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD QUANTITY PER INCH18
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
FASTENER LENGTH4.250 INCHES NOMINAL IN
THREAD CLASS2A A
HEAD STYLEHEXAGON
NOMINAL THREAD DIAMETER0.312 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
D15-680TPC211Interchangeable
interchangeable cross-reference
interchangeable
D15-680HPC211Interchangeable
interchangeable cross-reference
interchangeable
D15-680XPC211Interchangeable
interchangeable cross-reference
interchangeable
PG138-2Interchangeable
interchangeable cross-reference
interchangeable
LTB-125Interchangeable
interchangeable cross-reference
interchangeable
5975PL1340547Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6159-D ITEM 9?
6159-D ITEM 9 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 6159-D ITEM 9?
There are 10 known substitutes for 6159-D ITEM 9: D15-680TPC211, D15-680HPC211, D15-680XPC211 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6159-D ITEM 9?
6159-D ITEM 9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-355-3670. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026