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Technical Data Sheet
PartsTable / COMPONENT / 142D2671P2
142D2671P2 ✓ 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,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FLAT CHAMFER, head_height: 0.219 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.500 INCHES NOMINAL IN, thread_length: 0.438 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 5305-01-387-1206, 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
142D2671P2
NSN: 5305-01-387-1206
FSC: 5305
CAGE: 04241 — FLUOR MARINE PROPULSION, LLC DBA KNOLLS ATOMIC POWER LABORATORY (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleFLAT CHAMFER
head_height0.219 INCHES NOMINAL IN
thread_class2A A
head_diameter0.500 INCHES NOMINAL IN
thread_length0.438 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.188 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
shoulder_length0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5305-01-387-1206
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 142D2671P2 · 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 STYLE: FLAT CHAMFER
•
FASTENER LENGTH: 1.188 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 303 OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
INTERNAL DRIVE STYLE: SLOT
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEFLAT CHAMFER
FASTENER LENGTH1.188 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
HEAD DIAMETER0.500 INCHES NOMINAL IN
MATERIALSTEEL COMP 303 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
INTERNAL DRIVE STYLESLOT
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD QUANTITY PER INCH20
SHOULDER DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
313-001-004Interchangeable
interchangeable cross-reference
interchangeable
4342Interchangeable
interchangeable cross-reference
interchangeable
A-A-52440-1B-7Interchangeable
interchangeable cross-reference
interchangeable
50A19-31-115-125VInterchangeable
interchangeable cross-reference
interchangeable
3024A8737Interchangeable
interchangeable cross-reference
interchangeable
V2590Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 142D2671P2?
142D2671P2 is a SCREW,SHOULDER.
What parts can replace 142D2671P2?
There are 8 known substitutes for 142D2671P2: 313-001-004, 4342, A-A-52440-1B-7 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 142D2671P2?
142D2671P2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-387-1206. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026