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Technical Data Sheet
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B497761 — BOLT,TEE HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

B497761: BOLT,TEE HEAD.

The BOLT,TEE HEAD is a the manufacturer industrial component. Key specifications include head_style: TEE NO. 3, head_height: 0.140 INCHES NOMINAL IN, head_length: 0.700 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.430 INCHES NOMINAL IN, fastener_length: 0.570 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5306-01-174-6523, 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
B497761
NSN: 5306-01-174-6523
FSC: 5306 — Bolts
CAGE: K0378 — ROLLS-ROYCE PLC DIV DEFENSE (EUROPE) (GBR)
SPECIFICATIONS
head_styleTEE NO. 3
head_height0.140 INCHES NOMINAL IN
head_length0.700 INCHES NOMINAL IN
thread_class3A A
thread_length0.430 INCHES NOMINAL IN
fastener_length0.570 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5306-01-174-6523
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B497761 · 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: 0.140 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.570 INCHES NOMINAL IN
•
THREAD LENGTH: 0.430 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: TEE NO. 3
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD LENGTH: 0.700 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.140 INCHES NOMINAL IN
FASTENER LENGTH0.570 INCHES NOMINAL IN
THREAD LENGTH0.430 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLETEE NO. 3
THREAD DIRECTIONRIGHT-HAND
HEAD LENGTH0.700 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
THREAD CLASS3A A
THREAD QUANTITY PER INCH32
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B497761?
B497761 is a BOLT,TEE HEAD.
What is the NSN for B497761?
B497761 is cataloged in the U.S. Government catalog under NSN 5306-01-174-6523. 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.