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PartsTable / COMPONENT / 5495 15991
5495 15991 ✓ 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: 0.750 INCHES MINIMUM IN, style_designator: ROUND BEND, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.375 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 5306-00-175-7493, 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
5495 15991
NSN: 5306-00-175-7493
FSC: 5306
CAGE: 25567 — THE GORMAN-RUPP COMPANY DIV GORMAN-RUPP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
thread_length0.750 INCHES MINIMUM IN
style_designatorROUND BEND
thread_directionRIGHT-HAND
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
inside_distance_between_shanks0.750 INCHES NOMINAL IN
distance_from_inside_center_of_bend_to_bolt_end1.500 INCHES NOMINAL IN
NSN5306-00-175-7493
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5495 15991 · 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
•
THREAD CLASS: 2A A
•
STYLE DESIGNATOR: ROUND BEND
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD LENGTH: 0.750 INCHES MINIMUM IN
•
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END: 1.500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
THREAD QUANTITY PER INCH: 16
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
STYLE DESIGNATORROUND BEND
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD LENGTH0.750 INCHES MINIMUM IN
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END1.500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
THREAD QUANTITY PER INCH16
NOMINAL THREAD DIAMETER0.375 INCHES IN
INSIDE DISTANCE BETWEEN SHANKS0.750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
16FM34SB1Interchangeable
interchangeable cross-reference
interchangeable
5495Interchangeable
interchangeable cross-reference
interchangeable
QA-26195Interchangeable
interchangeable cross-reference
interchangeable
339D827H57Interchangeable
interchangeable cross-reference
interchangeable
405-417PCF8Interchangeable
interchangeable cross-reference
interchangeable
7037095Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5495 15991?
5495 15991 is a BOLT,U.
What parts can replace 5495 15991?
There are 8 known substitutes for 5495 15991: 16FM34SB1, 5495, QA-26195 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5495 15991?
5495 15991 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-175-7493. 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