PartsTable
Technical Data Sheet
172526-H1 ✓ 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,U is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM IN, style_designator: ROUND BEND, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.312 INCHES 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 5306-00-144-0358, 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
172526-H1
NSN: 5306-00-144-0358
FSC: 5306
CAGE: 0SAT8 — KOMATSU AMERICA CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
thread_length1.250 INCHES MINIMUM IN
style_designatorROUND BEND
thread_directionRIGHT-HAND
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
inside_distance_between_shanks1.000 INCHES NOMINAL IN
material_document_and_classification019 FSCM 29510 MFR REF SINGLE MATERIAL RESPONSE OVERALL
distance_from_inside_center_of_bend_to_bolt_end2.125 INCHES NOMINAL IN
NSN5306-00-144-0358
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 172526-H1 · 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
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
MATERIAL: STEEL OVERALL
THREAD DIRECTION: RIGHT-HAND
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END: 2.125 INCHES NOMINAL IN
STYLE DESIGNATOR: ROUND BEND
THREAD CLASS: 2A A
INSIDE DISTANCE BETWEEN SHANKS: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.312 INCHES IN
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END2.125 INCHES NOMINAL IN
STYLE DESIGNATORROUND BEND
THREAD CLASS2A A
INSIDE DISTANCE BETWEEN SHANKS1.000 INCHES NOMINAL IN
THREAD QUANTITY PER INCH18
THREAD LENGTH1.250 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
BEDX1ADUpgraded Successor
successor cross-reference
successor
22-57-1Upgraded Successor
successor cross-reference
successor
5214781Upgraded Successor
successor cross-reference
successor
172526Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 172526-H1?
172526-H1 is a BOLT,U.
What parts can replace 172526-H1?
There are 4 known substitutes for 172526-H1: BEDX1AD, 22-57-1, 5214781 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 172526-H1?
172526-H1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-144-0358. This indicates validated use in U.S. government and defense supply chains.
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