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3M945-12D57 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M945-12D57: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: PAN NO. 2, grip_length: 3.552 INCHES MINIMUM AND 3.572 INCHES MAXIMUM IN, head_height: 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.7485 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-192-1429, 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
3M945-12D57
NSN: 5305-01-192-1429
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_stylePAN NO. 2
grip_length3.552 INCHES MINIMUM AND 3.572 INCHES MAXIMUM IN
head_height0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.7485 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN
head_diameter1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
thread_length0.552 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN
fastener_length4.124 INCHES MINIMUM AND 4.144 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleHIGH-TORQUE
NSN5305-01-192-1429
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M945-12D57 · 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: 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.124 INCHES MINIMUM AND 4.144 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.552 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.750 INCHES IN
•
HEAD STYLE: PAN NO. 2
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
FASTENER LENGTH4.124 INCHES MINIMUM AND 4.144 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.552 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES IN
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH3.552 INCHES MINIMUM AND 3.572 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 3M945-12D57?
3M945-12D57 is a SCREW,CLOSE TOLERANCE.
What is the NSN for 3M945-12D57?
3M945-12D57 is cataloged in the U.S. Government catalog under NSN 5305-01-192-1429. This indicates validated use in U.S. government and defense supply chains.
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