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4185354 — BOLT,TEE HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4185354: BOLT,TEE HEAD.

The BOLT,TEE HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: TEE NO. 4, head_length: 1.750 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 3.250 INCHES NOMINAL IN, fastener_length: 7.063 INCHES MINIMUM AND 7.110 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5306-01-030-8953, 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
4185354
NSN: 5306-01-030-8953
FSC: 5306 — Bolts
CAGE: 80212 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleTEE NO. 4
head_length1.750 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN
thread_class2A A
thread_length3.250 INCHES NOMINAL IN
fastener_length7.063 INCHES MINIMUM AND 7.110 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
head_inside_diameter0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNF
tee_bolt_cylindrical_head_diameter0.781 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
NSN5306-01-030-8953
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4185354 · 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 INSIDE DIAMETER: 0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
•
FASTENER LENGTH: 7.063 INCHES MINIMUM AND 7.110 INCHES MAXIMUM IN
•
TEE BOLT CYLINDRICAL HEAD DIAMETER: 0.781 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
THREAD LENGTH: 3.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-681 CLASS 80-50 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-13048 FS 1035 THRU FS 1045 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: TEE NO. 4
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD INSIDE DIAMETER0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
FASTENER LENGTH7.063 INCHES MINIMUM AND 7.110 INCHES MAXIMUM IN
TEE BOLT CYLINDRICAL HEAD DIAMETER0.781 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
THREAD LENGTH3.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-681 CLASS 80-50 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-13048 FS 1035 THRU FS 1045 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLETEE NO. 4
THREAD DIRECTIONRIGHT-HAND
HEAD LENGTH1.750 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN
THREAD CLASS2A A
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
5306010308953Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4185354?
4185354 is a BOLT,TEE HEAD.
What parts can replace 4185354?
There is 1 known substitute for 4185354: 5306010308953. Substitute compatibility should be verified for your specific system.
What is the NSN for 4185354?
4185354 is cataloged in the U.S. Government catalog under NSN 5306-01-030-8953. 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.