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ST3M561-6D25 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M561-6D25: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON, grip_length: 0.1546 INCHES MINIMUM AND 0.1593 INCHES MAXIMUM IN, head_height: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-589-6570, 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
ST3M561-6D25
NSN: 5306-00-589-6570
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON
grip_length0.1546 INCHES MINIMUM AND 0.1593 INCHES MAXIMUM IN
head_height0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
thread_length0.317 INCHES NOMINAL IN
fastener_length1.946 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
NSN5306-00-589-6570
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M561-6D25 · 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: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.946 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.317 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
•
CRITICALITY CODE JUSTIFICATION: ANEE
•
MATERIAL DOCUMENT AND CLASSIFICATION: 76301-23-105 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
FASTENER LENGTH1.946 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.317 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
CRITICALITY CODE JUSTIFICATIONANEE
MATERIAL DOCUMENT AND CLASSIFICATION76301-23-105 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 3
MB13-6D25Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BM17028-6-25DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
73992-6D25Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M561-6D25?
ST3M561-6D25 is a BOLT,SHEAR.
What parts can replace ST3M561-6D25?
There are 3 known substitutes for ST3M561-6D25: MB13-6D25, BM17028-6-25D, 73992-6D25. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M561-6D25?
ST3M561-6D25 is cataloged in the U.S. Government catalog under NSN 5306-00-589-6570. This indicates validated use in U.S. government and defense supply chains.
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