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5186939 — BOLT,TEE HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5186939: 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: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, fastener_length: 5.090 INCHES MINIMUM AND 5.160 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5306-01-164-1121, 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
5186939
NSN: 5306-01-164-1121
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleTEE NO. 4
head_length1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
thread_class2A A
thread_length0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
fastener_length5.090 INCHES MINIMUM AND 5.160 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
head_inside_diameter0.1240 INCHES MINIMUM AND 0.1242 INCHES MAXIMUM IN
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-01-164-1121
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5186939 · 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: 0.1240 INCHES MINIMUM AND 0.1242 INCHES MAXIMUM IN
•
FASTENER LENGTH: 5.090 INCHES MINIMUM AND 5.160 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: TEE NO. 4
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD LENGTH: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD INSIDE DIAMETER0.1240 INCHES MINIMUM AND 0.1242 INCHES MAXIMUM IN
FASTENER LENGTH5.090 INCHES MINIMUM AND 5.160 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLETEE NO. 4
THREAD DIRECTIONRIGHT-HAND
HEAD LENGTH1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
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

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 5186939?
5186939 is a BOLT,TEE HEAD.
What is the NSN for 5186939?
5186939 is cataloged in the U.S. Government catalog under NSN 5306-01-164-1121. 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.