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Technical Data Sheet
PartsTable / COMPONENT / 56274
56274 ✓ 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 CONNECTOR ASSY,CONV is a the manufacturer industrial component. Key specifications include material: STEEL CASE, body_style: PLAIN, SOLID, case_style: SQUARE, head_style: DEE CHAMFER, seal_width: 0.250 INCHES NOMINAL IN, tooth_form: STANDARD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-147-3741, 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
56274
NSN: 5306-00-147-3741
FSC: 5306
CAGE: 96046 — CRANE PUMPS & SYSTEMS PFT CORP DIV CRANE PUMPS & SYSTEM PFT CORP. (USA)
SPECIFICATIONS
materialSTEEL CASE
body_stylePLAIN, SOLID
case_styleSQUARE
head_styleDEE CHAMFER
seal_width0.250 INCHES NOMINAL IN
tooth_formSTANDARD
head_height0.219 INCHES NOMINAL IN
head_diameter0.562 INCHES NOMINAL IN
thread_length0.750 INCHES MINIMUM IN
pitch_diameter2.1520 INCHES MINIMUM AND 2.1540 INCHES MAXIMUM IN
pressure_angle14.5000 DEGREES
shoulder_shapeROUND FIRST SHOULDER
NSN5306-00-147-3741
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 56274 · 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
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: DEE CHAMFER
•
NONSTANDARD THREAD PITCH DIAMETER: +0.3450 TO 0.3480 INCHES IN
•
SHOULDER LENGTH: 0.719 INCHES NOMINAL FIRST SHOULDER IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UN
•
FASTENER LENGTH: 2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDEE CHAMFER
NONSTANDARD THREAD PITCH DIAMETER+0.3450 TO 0.3480 INCHES IN
SHOULDER LENGTH0.719 INCHES NOMINAL FIRST SHOULDER IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUN
FASTENER LENGTH2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
SPECIAL FEATURESUNDERCUT BETWEEN HEAD AND SHOULDER 0.094 IN.WIDE BY 0.003 IN.MIN TO 0.005 IN.MAX DEEP IN
THREAD DIRECTIONRIGHT-HAND
HARDNESS RATING29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
SM-B-187463Interchangeable
interchangeable cross-reference
interchangeable
56274Interchangeable
interchangeable cross-reference
interchangeable
56274AInterchangeable
interchangeable cross-reference
interchangeable
1941866Interchangeable
interchangeable cross-reference
interchangeable
4641Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 56274?
56274 is a CONNECTOR ASSY,CONV.
What parts can replace 56274?
There are 5 known substitutes for 56274: SM-B-187463, 56274, 56274A and 2 more. Substitute compatibility should be verified for your specific system.
Is 56274 still available?
56274 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