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TX1027D4-7AF — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

TX1027D4-7AF: 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: 0.438 INCHES NOMINAL 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 5305-01-481-9375, 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
TX1027D4-7AF
NSN: 5305-01-481-9375
FSC: 5305 — Screws
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleFLAT COUNTERSUNK
grip_length0.438 INCHES NOMINAL IN
point_styleFLAT
thread_class3A A
grip_diameter0.249 INCHES NOMINAL IN
head_diameter0.358 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN
thread_length0.425 INCHES NOMINAL IN
point_diameter0.425 INCHES NOMINAL IN
fastener_length0.863 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
NSN5305-01-481-9375
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: TX1027D4-7AF · 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: 0.863 INCHES NOMINAL IN
•
THREAD LENGTH: 0.425 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
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 LENGTH0.863 INCHES NOMINAL IN
THREAD LENGTH0.425 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONAGAV
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 LENGTH0.438 INCHES NOMINAL 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
11825D4-7AFSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HP1170D4-7FSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TX1027D4-7AF?
TX1027D4-7AF is a SCREW,CLOSE TOLERANCE.
What parts can replace TX1027D4-7AF?
There are 2 known substitutes for TX1027D4-7AF: 11825D4-7AF, HP1170D4-7F. Substitute compatibility should be verified for your specific system.
What is the NSN for TX1027D4-7AF?
TX1027D4-7AF is cataloged in the U.S. Government catalog under NSN 5305-01-481-9375. 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.