PartsTable
Technical Data Sheet
8170157 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: HEXAGON, grip_length: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, head_height: 0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.070 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-754-1788, 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
8170157
NSN: 5306-00-754-1788
FSC: 5306
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
head_height0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity6
thread_length0.499 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
fastener_length0.640 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-754-1788
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8170157 · 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
HOLE TYPE: DRILLED
HOLE QUANTITY: 6
THREAD DIRECTION: RIGHT-HAND
HEAD HEIGHT: 0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
HOLE DIAMETER: 0.070 INCHES NOMINAL IN
GRIP LENGTH: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
HOLE TYPEDRILLED
HOLE QUANTITY6
THREAD DIRECTIONRIGHT-HAND
HEAD HEIGHT0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HOLE DIAMETER0.070 INCHES NOMINAL IN
GRIP LENGTH0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
FEATURES PROVIDEDFINISHED HEAD
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MS20074-10-16Upgraded Successor
successor cross-reference
successor
MILB6812Upgraded Successor
successor cross-reference
successor
AN3-4Upgraded Successor
successor cross-reference
successor
85H30Upgraded Successor
successor cross-reference
successor
NASM6812Upgraded Successor
successor cross-reference
successor
83T26Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8170157?
8170157 is a BOLT,MACHINE.
What parts can replace 8170157?
There are 19 known substitutes for 8170157: MS20074-10-16, MILB6812, AN3-4 and 16 more. Substitute compatibility should be verified for your specific system.
Is 8170157 still available?
8170157 is currently cancelled.
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