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Technical Data Sheet
PartsTable / COMPONENT / 278-47A
278-47A ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,CLEVIS is a the manufacturer industrial component. Key specifications include head_style: BUTTON, head_height: 0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN, thread_length: 0.297 INCHES MINIMUM IN, fastener_length: 0.844 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-151-1965, 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
278-47A
NSN: 5306-00-151-1965
FSC: 5306
CAGE: 45934 — ONTIC ENGINEERING & MANUFACTURING, INC DBA ONTIC US (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
head_styleBUTTON
head_height0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
thread_length0.297 INCHES MINIMUM IN
fastener_length0.844 INCHES NOMINAL IN
groove_diameter0.141 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
NSN5306-00-151-1965
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 278-47A · 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: 0.844 INCHES NOMINAL IN
•
THREAD LENGTH: 0.297 INCHES MINIMUM IN
•
INTERNAL DRIVE STYLE: SLOT
•
SHANK UNTHREADED HOLE DIAMETER: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HEAD DIAMETER: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
•
GROOVE DIAMETER: 0.141 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH0.844 INCHES NOMINAL IN
THREAD LENGTH0.297 INCHES MINIMUM IN
INTERNAL DRIVE STYLESLOT
SHANK UNTHREADED HOLE DIAMETER0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD DIAMETER0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
GROOVE DIAMETER0.141 INCHES NOMINAL IN
THREAD QUANTITY PER INCH32
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-8695 MIL SPEC 6TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AS5162Interchangeable
interchangeable cross-reference
interchangeable
6026-91016RInterchangeable
interchangeable cross-reference
interchangeable
400675Interchangeable
interchangeable cross-reference
interchangeable
AN23-13Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 278-47A?
278-47A is a BOLT,CLEVIS.
What parts can replace 278-47A?
There are 4 known substitutes for 278-47A: AS5162, 6026-91016R, 400675 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 278-47A?
278-47A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-151-1965. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026