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Technical Data Sheet
PartsTable / COMPONENT / 2749HX
2749HX ✓ 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 SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, thread_length: 1.500 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-303-4702, 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
2749HX
NSN: 5305-01-303-4702
FSC: 5305
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
thread_length1.500 INCHES MINIMUM IN
fastener_length2.440 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-01-303-4702
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2749HX · 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: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
•
THREAD LENGTH: 1.500 INCHES MINIMUM IN
•
FASTENER LENGTH: 2.440 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
HEAD DIAMETER0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN
THREAD CLASS3A A
THREAD LENGTH1.500 INCHES MINIMUM IN
FASTENER LENGTH2.440 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MINIMUM YIELD STRENGTH150000 POUNDS PER SQUARE INCH LBS
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
PA5648Interchangeable
interchangeable cross-reference
interchangeable
23881Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
23881-1Interchangeable
interchangeable cross-reference
interchangeable
37740Interchangeable
interchangeable cross-reference
interchangeable
30468Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2749HX?
2749HX is a SCREW,CAP,SOCKET HEAD.
What parts can replace 2749HX?
There are 9 known substitutes for 2749HX: PA5648, 23881, QQ-A-200/11 and 6 more. Substitute compatibility should be verified for your specific system.
Is 2749HX still available?
2749HX 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