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Technical Data Sheet
PartsTable / COMPONENT / 157017PC40T042
157017PC40T042 ✓ 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 BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.438 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.875 INCHES NOMINAL IN, thread_length: 0.938 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 5306-00-393-3634, 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
157017PC40T042
NSN: 5306-00-393-3634
FSC: 5306
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.438 INCHES NOMINAL IN
thread_class3A A
head_diameter0.875 INCHES NOMINAL IN
thread_length0.938 INCHES NOMINAL IN
fastener_length4.625 INCHES NOMINAL IN
special_featuresWITH GROOVE IN SIDE OF HEAD 0.188 IN. W 0.094 IN. DEEP,FURNISHED WITH HEX NUT AND COTTER PIN IN
thread_directionRIGHT-HAND
minimum_yield_strength105000 POUNDS PER SQUARE INCH LBS
nominal_thread_diameter0.562 INCHES IN
first_diameter_from_head0.490 INCHES NOMINAL IN
NSN5306-00-393-3634
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 157017PC40T042 · 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: 0.875 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.625 INCHES NOMINAL IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.875 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.562 INCHES IN
•
THIRD DIAMETER FROM HEAD: 0.490 INCHES NOMINAL IN
•
MINIMUM YIELD STRENGTH: 105000 POUNDS PER SQUARE INCH LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890,ALLOY MO. 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.875 INCHES NOMINAL IN
FASTENER LENGTH4.625 INCHES NOMINAL IN
SPECIAL FEATURESWITH GROOVE IN SIDE OF HEAD 0.188 IN. W 0.094 IN. DEEP,FURNISHED WITH HEX NUT AND COTTER PIN IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.875 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.562 INCHES IN
THIRD DIAMETER FROM HEAD0.490 INCHES NOMINAL IN
MINIMUM YIELD STRENGTH105000 POUNDS PER SQUARE INCH LBS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,ALLOY MO. 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
4030848Interchangeable
interchangeable cross-reference
interchangeable
7806140Interchangeable
interchangeable cross-reference
interchangeable
157431PC40T042Interchangeable
Same NIIN cross-reference
interchangeable
031BInterchangeable
Same NIIN cross-reference
interchangeable
156408PC40T042Interchangeable
Same NIIN cross-reference
interchangeable
157441PC40T042Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 157017PC40T042?
157017PC40T042 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 157017PC40T042?
There are 7 known substitutes for 157017PC40T042: 4030848, 7806140, 157431PC40T042 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 157017PC40T042?
157017PC40T042 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-393-3634. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026