PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 03-006440
03-006440 ✓ 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 COMP 4140 OVERALL, head_style: FLAT CHAMFER, head_height: 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.812 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN, thread_length: 1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-237-8296, 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
03-006440
NSN: 5306-00-237-8296
FSC: 5306
CAGE: 52793 — SAGINAW PRODUCTS CORPORATION DBA CIGNYS (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
head_styleFLAT CHAMFER
head_height0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.812 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
thread_length1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN
shoulder_shapeRIBBED FIRST SHOULDER
fastener_length1.859 INCHES MINIMUM AND 1.891 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length0.495 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.534 INCHES MINIMUM AND 0.539 INCHES MAXIMUM FIRST SHOULDER IN
NSN5306-00-237-8296
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 03-006440 · 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 STYLE: FLAT CHAMFER
•
HEAD HEIGHT: 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 4140 OVERALL
•
SHOULDER DIAMETER: 0.534 INCHES MINIMUM AND 0.539 INCHES MAXIMUM FIRST SHOULDER IN
•
SHOULDER LENGTH: 0.495 INCHES NOMINAL FIRST SHOULDER IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEFLAT CHAMFER
HEAD HEIGHT0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
SHOULDER DIAMETER0.534 INCHES MINIMUM AND 0.539 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER LENGTH0.495 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
D-E-10005Interchangeable
interchangeable cross-reference
interchangeable
6440Interchangeable
interchangeable cross-reference
interchangeable
40Interchangeable
interchangeable cross-reference
interchangeable
5416K22Interchangeable
interchangeable cross-reference
interchangeable
700A376010Interchangeable
interchangeable cross-reference
interchangeable
405AS110-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 03-006440?
03-006440 is a BOLT,RIBBED SHOULDER.
What parts can replace 03-006440?
There are 13 known substitutes for 03-006440: D-E-10005, 6440, 40 and 10 more. Substitute compatibility should be verified for your specific system.
Is 03-006440 still available?
03-006440 is currently cancelled.
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Last verified: July 2026