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ST3M747 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M747: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, hole_type: DRILLED, head_style: SPLINE DRIVE SHEAR HEAD, grip_length: 3.490 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN, head_height: 0.257 INCHES NOMINAL IN, point_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-129-0577, 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
ST3M747
NSN: 5306-01-129-0577
NIINs: 011290577, 017069746, 017069783
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
hole_typeDRILLED
head_styleSPLINE DRIVE SHEAR HEAD
grip_length3.490 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN
head_height0.257 INCHES NOMINAL IN
point_styleFLAT
thread_class3A A
grip_diameter0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
hole_diameter0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
hole_quantity1
thread_length0.599 INCHES MAXIMUM IN
fastener_length4.099 INCHES NOMINAL IN
NSN5306-01-129-0577
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M747 · 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: 0.164 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.443 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: SPLINE DRIVE SHEAR HEAD
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.164 INCHES NOMINAL IN
FASTENER LENGTH1.443 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLESPLINE DRIVE SHEAR HEAD
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
HEAD MINOR DIAMETER0.448 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
MB155-4-17Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10115795Reference document
Same NSN cross-reference
Reference document — Informative reference only
HP7747-4-17Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST3M747-4-17Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S397-4-17Reference document
Same NSN cross-reference
Reference document — Secondary reference
VS3191-4-17Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 ST3M747?
ST3M747 is a BOLT,CLOSE TOLERANCE.
What parts can replace ST3M747?
There are 8 known substitutes for ST3M747: MB155-4-17, 10115795, HP7747-4-17 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M747?
ST3M747 is cataloged in the U.S. Government catalog under NSN 5306-01-129-0577. This indicates validated use in U.S. government and defense supply chains.
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