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PartsTable / COMPONENT / 18A70447E
18A70447E ✓ 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,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, rib_length: 0.250 INCHES NOMINAL IN, head_height: 0.312 INCHES NOMINAL IN, head_diameter: 1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN, thread_length: 0.844 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-206-1560, 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
18A70447E
NSN: 5306-00-206-1560
FSC: 5306
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
rib_length0.250 INCHES NOMINAL IN
head_height0.312 INCHES NOMINAL IN
head_diameter1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
thread_length0.844 INCHES MINIMUM IN
shoulder_shapeRIBBED FIRST SHOULDER
fastener_length1.438 INCHES NOMINAL IN
hardness_rating18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length0.438 INCHES NOMINAL FIRST SHOULDER IN
special_features0.707 IN. DIA BY 0.343 IN. WIDE THD RELIEF BETWEEN SHOULDER AND THD IN
thread_directionRIGHT-HAND
NSN5306-00-206-1560
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 18A70447E · 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: 0.312 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
SHOULDER DIAMETER: 0.840 INCHES MINIMUM AND 0.845 INCHES MAXIMUM FIRST SHOULDER IN
•
NONSTANDARD THREAD PITCH DIAMETER: +0.7044 TO 0.7084 INCHES IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
THREAD QUANTITY PER INCH: 16
•
RIB MAJOR DIAMETER: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.312 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURES0.707 IN. DIA BY 0.343 IN. WIDE THD RELIEF BETWEEN SHOULDER AND THD IN
SHOULDER DIAMETER0.840 INCHES MINIMUM AND 0.845 INCHES MAXIMUM FIRST SHOULDER IN
NONSTANDARD THREAD PITCH DIAMETER+0.7044 TO 0.7084 INCHES IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD QUANTITY PER INCH16
RIB MAJOR DIAMETER0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
SHOULDER SHAPERIBBED FIRST SHOULDER
NOMINAL THREAD DIAMETER0.750 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
40150Interchangeable
interchangeable cross-reference
interchangeable
D-376Interchangeable
interchangeable cross-reference
interchangeable
70447Interchangeable
interchangeable cross-reference
interchangeable
15X826Interchangeable
Same NIIN cross-reference
interchangeable
70447EInterchangeable
Same NIIN cross-reference
interchangeable
0BG26746Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18A70447E?
18A70447E is a BOLT,RIBBED SHOULDER.
What parts can replace 18A70447E?
There are 8 known substitutes for 18A70447E: 40150, D-376, 70447 and 5 more. Substitute compatibility should be verified for your specific system.
Is 18A70447E still available?
18A70447E is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026