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3M1170-D4-23A — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M1170-D4-23A: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN, head_height: 0.046 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-478-2862, 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
3M1170-D4-23A
NSN: 5305-01-478-2862
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleFLAT COUNTERSUNK
grip_length1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
head_height0.046 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
head_diameter0.385 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN
thread_length0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
fastener_length1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_styleTORX
NSN5305-01-478-2862
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M1170-D4-23A · 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: 0.046 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: PH13-8MOCRES MFR REF 1ST 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
HEAD HEIGHT0.046 INCHES MAXIMUM IN
FASTENER LENGTH1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
THREAD LENGTH0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONPH13-8MOCRES MFR REF 1ST 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
GRIP LENGTH1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 3
TX1027D4-23ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11825-D4-23ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11845-D4-23ASame 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 3M1170-D4-23A?
3M1170-D4-23A is a SCREW,CLOSE TOLERANCE.
What parts can replace 3M1170-D4-23A?
There are 3 known substitutes for 3M1170-D4-23A: TX1027D4-23A, 11825-D4-23A, 11845-D4-23A. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M1170-D4-23A?
3M1170-D4-23A is cataloged in the U.S. Government catalog under NSN 5305-01-478-2862. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.