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125646-4 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

125646-4: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: DISHED HEXAGON, grip_length: 1.750 INCHES NOMINAL IN, head_height: 0.125 INCHES MINIMUM IN, thread_class: 3A A, grip_diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-436-6466, 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
125646-4
NSN: 5306-01-436-6466
FSC: 5306 — Bolts
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleDISHED HEXAGON
grip_length1.750 INCHES NOMINAL IN
head_height0.125 INCHES MINIMUM IN
thread_class3A A
grip_diameter0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length0.525 INCHES NOMINAL IN
fastener_length2.260 INCHES MINIMUM AND 2.290 INCHES MAXIMUM IN
locking_featureRETAINER GRIP
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
NSN5306-01-436-6466
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 125646-4 · 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: 0.125 INCHES MINIMUM IN
•
FASTENER LENGTH: 2.260 INCHES MINIMUM AND 2.290 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 MIL SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 0.525 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: A286 AMS5731 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.2500 INCHES IN
•
HEAD STYLE: DISHED HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.125 INCHES MINIMUM IN
FASTENER LENGTH2.260 INCHES MINIMUM AND 2.290 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 MIL SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH0.525 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONA286 AMS5731 ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.2500 INCHES IN
HEAD STYLEDISHED HEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.750 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
20-104-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 125646-4?
125646-4 is a BOLT,MACHINE.
What parts can replace 125646-4?
There is 1 known substitute for 125646-4: 20-104-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 125646-4?
125646-4 is cataloged in the U.S. Government catalog under NSN 5306-01-436-6466. This indicates validated use in U.S. government and defense supply chains.
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