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481289 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

481289: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A A, thread_length: 1.75 INCHES NOMINAL IN, fastener_length: 1.75 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, end_item_identification: 4910-01-627-0524. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-660-8970, 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
481289
NSN: 5306-01-660-8970
FSC: 5306 — Bolts
CAGE: 78462 — PARKER-HANNIFIN CORP DIV SPORLAN DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
thread_length1.75 INCHES NOMINAL IN
fastener_length1.75 INCHES NOMINAL IN
thread_directionRIGHT-HAND
end_item_identification4910-01-627-0524
nominal_thread_diameter0.3125 INCHES IN
part_name_assigned_by_controlling_agencyBOLT 5/16 X 1-3/4
surface_treatment_document_and_classificationSERMAGARD COATED MFR REF SINGLE TREATMENT RESPONSE OVERALL
NSN5306-01-660-8970
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 481289 · 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
•
FASTENER LENGTH: 1.75 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: SERMAGARD COATED MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.75 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.3125 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.75 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSERMAGARD COATED MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.75 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.3125 INCHES IN
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT 5/16 X 1-3/4
THREAD CLASS2A A
END ITEM IDENTIFICATION4910-01-627-0524
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 481289?
481289 is a BOLT,MACHINE.
What is the NSN for 481289?
481289 is cataloged in the U.S. Government catalog under NSN 5306-01-660-8970. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.