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TX1027C4D17AF — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

TX1027C4D17AF: 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: 1.052 INCHES MINIMUM AND 1.072 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 5305-01-513-8731, 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
TX1027C4D17AF
NSN: 5305-01-513-8731
FSC: 5305 — Screws
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleFLAT COUNTERSUNK
grip_length1.052 INCHES MINIMUM AND 1.072 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_length0.425 INCHES NOMINAL IN
point_diameter0.425 INCHES NOMINAL IN
fastener_length1.472 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN
special_featuresDRILLED SHANK, IVD ALUMINUM COAT
thread_directionRIGHT-HAND
NSN5305-01-513-8731
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: TX1027C4D17AF · 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: 1.472 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.425 INCHES NOMINAL 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 LENGTH1.472 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN
THREAD LENGTH0.425 INCHES NOMINAL 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 LENGTH1.052 INCHES MINIMUM AND 1.072 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 2
3M1170C4D17AFSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11825C4D17AFSame 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 TX1027C4D17AF?
TX1027C4D17AF is a SCREW,CLOSE TOLERANCE.
What parts can replace TX1027C4D17AF?
There are 2 known substitutes for TX1027C4D17AF: 3M1170C4D17AF, 11825C4D17AF. Substitute compatibility should be verified for your specific system.
What is the NSN for TX1027C4D17AF?
TX1027C4D17AF is cataloged in the U.S. Government catalog under NSN 5305-01-513-8731. 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.