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PartsTable / COMPONENT / 155886
155886 ✓ 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: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, thread_length: 0.500 INCHES MAXIMUM IN, fastener_length: 0.500 INCHES NOMINAL IN, countersink_angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-015-5886, 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
155886
NSN: 5305-00-015-5886
FSC: 5305
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_length0.500 INCHES MAXIMUM IN
screw_materialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
fastener_length0.500 INCHES NOMINAL IN
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentCADMIUM OR ZINC
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-015-5886
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 155886 · 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
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC ALL MATERIAL RESPONSES
•
SCREW SURFACE TREATMENT: CADMIUM OR ZINC
•
THREAD LENGTH: 0.500 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
HEAD DIAMETER: 0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC ALL MATERIAL RESPONSES
SCREW SURFACE TREATMENTCADMIUM OR ZINC
THREAD LENGTH0.500 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
HEAD DIAMETER0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
HEAD STYLEFLAT COUNTERSUNK
NOMINAL THREAD DIAMETER0.164 INCHES IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
THREAD CLASS2A A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
FFS92TYPE3STYLE2CInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 155886?
155886 is a SCREW,MACHINE.
What parts can replace 155886?
There is 1 known substitute for 155886: FFS92TYPE3STYLE2C. Substitute compatibility should be verified for your specific system.
What is the NSN for 155886?
155886 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-015-5886. 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