PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 3072B
3072B ✓ 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 material: COPPER ALLOY 464 OVERALL, head_style: HEXAGON, head_height: 0.172 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.625 INCHES MINIMUM IN, fastener_length: 1.250 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 5306-00-271-8447, 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
3072B
NSN: 5306-00-271-8447
FSC: 5306
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 464 OVERALL
head_styleHEXAGON
head_height0.172 INCHES NOMINAL IN
thread_class3A A
thread_length0.625 INCHES MINIMUM IN
fastener_length1.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.594 INCHES NOMINAL IN
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-271-8447
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3072B · 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 HEIGHT: 0.172 INCHES NOMINAL IN
•
THREAD LENGTH: 0.625 INCHES MINIMUM IN
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-994A,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
•
FEATURES PROVIDED: FINISHED HEAD
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 0.156 INCHES NOMINAL FIRST HOLE IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.172 INCHES NOMINAL IN
THREAD LENGTH0.625 INCHES MINIMUM IN
FASTENER LENGTH1.250 INCHES NOMINAL IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-994A,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
FEATURES PROVIDEDFINISHED HEAD
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.156 INCHES NOMINAL FIRST HOLE IN
THREAD CLASS3A A
SHANK UNTHREADED HOLE DIAMETER0.078 INCHES NOMINAL FIRST HOLE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
FF-S-85CUpgraded Successor
successor cross-reference
successor
1D4569Upgraded Successor
successor cross-reference
successor
FF-S-85Upgraded Successor
successor cross-reference
successor
SPP61-0171Upgraded Successor
successor cross-reference
successor
04-0064 ITEM NO 65Upgraded Successor
successor cross-reference
successor
156411PC115Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3072B?
3072B is a BOLT,MACHINE.
What parts can replace 3072B?
There are 11 known substitutes for 3072B: FF-S-85C, 1D4569, FF-S-85 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3072B?
3072B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-271-8447. 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