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5166799 — BOLT,TEE HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5166799: BOLT,TEE HEAD.

The BOLT,TEE HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL, head_style: TEE NO. 1, head_height: 0.250 INCHES NOMINAL IN, head_length: 0.850 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.500 INCHES MINIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5306-01-264-6659, 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
5166799
NSN: 5306-01-264-6659
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
head_styleTEE NO. 1
head_height0.250 INCHES NOMINAL IN
head_length0.850 INCHES NOMINAL IN
thread_class2A A
thread_length1.500 INCHES MINIMUM IN
fastener_length2.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.312 INCHES NOMINAL IN
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
NSN5306-01-264-6659
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5166799 · 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: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.000 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.500 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: TEE NO. 1
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH2.000 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.500 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLETEE NO. 1
THREAD DIRECTIONRIGHT-HAND
HEAD LENGTH0.850 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL 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

No substitute or cross-reference records for this part.

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 5166799?
5166799 is a BOLT,TEE HEAD.
What is the NSN for 5166799?
5166799 is cataloged in the U.S. Government catalog under NSN 5306-01-264-6659. 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.