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578669 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

578669: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.808 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.568 INCHES NOMINAL IN, fastener_length: 2.880 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-516-2658, 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
578669
NSN: 5306-01-516-2658
FSC: 5306 — Bolts
CAGE: 59747 — REXNORD INDUSTRIES, LLC DIV COUPLINGS DIVISION (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.808 INCHES NOMINAL IN
thread_class3A A
thread_length1.568 INCHES NOMINAL IN
fastener_length2.880 INCHES NOMINAL IN
special_featuresHEAT TREATED TO 180.000 PSI ULTIMATE TENSILE STRENGTH
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentPASSIVATE OVERALL
width_between_flats0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
end_item_identificationCOUPLING SHAFT
NSN5306-01-516-2658
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 578669 · 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
•
EXTENDED WASHER THICKNESS: 0.198 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.808 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.880 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 1.433 INCHES NOMINAL IN
•
THREAD LENGTH: 1.568 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.875 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.198 INCHES NOMINAL IN
HEAD HEIGHT0.808 INCHES NOMINAL IN
FASTENER LENGTH2.880 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER1.433 INCHES NOMINAL IN
THREAD LENGTH1.568 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.875 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
SUBSTITUTES & CROSS-REFERENCES 1
C049260Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 578669?
578669 is a BOLT,MACHINE.
What parts can replace 578669?
There is 1 known substitute for 578669: C049260. Substitute compatibility should be verified for your specific system.
What is the NSN for 578669?
578669 is cataloged in the U.S. Government catalog under NSN 5306-01-516-2658. This indicates validated use in U.S. government and defense supply chains.
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