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BLT5019 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BLT5019: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include thread_class: 3A A, thread_length: 0.770 INCHES NOMINAL IN, fastener_length: 2.456 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, surface_treatment: SILVER THREADS, nominal_thread_diameter: 0.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-166-4534, 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
BLT5019
NSN: 5306-01-166-4534
FSC: 5306 — Bolts
CAGE: K0378 — ROLLS-ROYCE PLC DIV DEFENSE (EUROPE) (GBR)
SPECIFICATIONS
thread_class3A A
thread_length0.770 INCHES NOMINAL IN
fastener_length2.456 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentSILVER THREADS
nominal_thread_diameter0.250 INCHES IN
first_diameter_from_head0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
thread_quantity_per_inch28
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
distance_from_largest_bearing_surface_of_head_to_end_of_first_diameter1.500 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
NSN5306-01-166-4534
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BLT5019 · 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
•
FASTENER LENGTH: 2.456 INCHES NOMINAL IN
•
THREAD LENGTH: 0.770 INCHES NOMINAL IN
•
FIRST DIAMETER FROM HEAD: 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 1.500 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
•
SURFACE TREATMENT: SILVER THREADS
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
FASTENER LENGTH2.456 INCHES NOMINAL IN
THREAD LENGTH0.770 INCHES NOMINAL IN
FIRST DIAMETER FROM HEAD0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.500 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
SURFACE TREATMENTSILVER THREADS
THREAD CLASS3A A
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
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 BLT5019?
BLT5019 is a BOLT,EXTERNALLY RELIEVED BODY.
What is the NSN for BLT5019?
BLT5019 is cataloged in the U.S. Government catalog under NSN 5306-01-166-4534. This indicates validated use in U.S. government and defense supply chains.
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