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3M1170C4-20A — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M1170C4-20A: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, point_style: FLAT, thread_class: 3A A, grip_diameter: 0.249 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-512-8293, 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
3M1170C4-20A
NSN: 5305-01-512-8293
FSC: 5305 — Screws
CAGE: 0K6Z0 — SATURN FASTENERS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleFLAT COUNTERSUNK
grip_length1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
point_styleFLAT
thread_class3A A
grip_diameter0.249 INCHES NOMINAL IN
head_diameter0.385 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN
thread_length0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
point_diameter0.425 INCHES NOMINAL IN
fastener_length1.660 INCHES MINIMUM AND 1.690 INCHES MAXIMUM IN
special_features125 KSI SHEAR STRENGTH
thread_directionRIGHT-HAND
NSN5305-01-512-8293
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M1170C4-20A · 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
•
POINT DIAMETER: 0.425 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.660 INCHES MINIMUM AND 1.690 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SPLINE MAJOR DIAMETER: 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.425 INCHES NOMINAL IN
FASTENER LENGTH1.660 INCHES MINIMUM AND 1.690 INCHES MAXIMUM IN
THREAD LENGTH0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPLINE MAJOR DIAMETER0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
GRIP LENGTH1.240 INCHES MINIMUM AND 1.260 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 3
TX1027C4-20ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11825C4-20ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
WC1170C4-20ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 3M1170C4-20A?
3M1170C4-20A is a SCREW,CLOSE TOLERANCE.
What parts can replace 3M1170C4-20A?
There are 3 known substitutes for 3M1170C4-20A: TX1027C4-20A, 11825C4-20A, WC1170C4-20A. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M1170C4-20A?
3M1170C4-20A is cataloged in the U.S. Government catalog under NSN 5305-01-512-8293. This indicates validated use in U.S. government and defense supply chains.
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