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TX1026E5D20A — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

TX1026E5D20A: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, hole_type: DRILLED, head_style: FLAT COUNTERSUNK, grip_length: 1.250 INCHES NOMINAL IN, head_height: 0.120 INCHES NOMINAL IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-628-5490, 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
TX1026E5D20A
NSN: 5306-01-628-5490
FSC: 5306 — Bolts
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
hole_typeDRILLED
head_styleFLAT COUNTERSUNK
grip_length1.250 INCHES NOMINAL IN
head_height0.120 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.3271 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM IN
head_diameter0.6230 INCHES MINIMUM AND 0.6335 INCHES MAXIMUM IN
hole_diameter0.076 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
hole_quantity1
thread_length0.469 INCHES NOMINAL IN
fastener_length1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM IN
NSN5306-01-628-5490
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: TX1026E5D20A · 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: 0.120 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.469 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
NOMINAL THREAD DIAMETER: 0.3125 INCHES IN
•
FEATURES PROVIDED: CETYL ALCOHOL LUBRICANT
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.120 INCHES NOMINAL IN
FASTENER LENGTH1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM IN
THREAD LENGTH0.469 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONAGAV
NOMINAL THREAD DIAMETER0.3125 INCHES IN
FEATURES PROVIDEDCETYL ALCOHOL LUBRICANT
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.250 INCHES NOMINAL IN
GRIP DIAMETER0.3271 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
3M1275E5D20ASame 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 TX1026E5D20A?
TX1026E5D20A is a BOLT,CLOSE TOLERANCE.
What parts can replace TX1026E5D20A?
There is 1 known substitute for TX1026E5D20A: 3M1275E5D20A. Substitute compatibility should be verified for your specific system.
What is the NSN for TX1026E5D20A?
TX1026E5D20A is cataloged in the U.S. Government catalog under NSN 5306-01-628-5490. 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.