PartsTable
Technical Data Sheet

M24149/1-557 — STUD,WELDING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

M24149/1-557: STUD,WELDING.

The STUD,WELDING is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 2A NUT THREAD A, thread_length: 0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, shoulder_length: 0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, special_features: FURNISHED WITH ARC SHIELD OF HEAT RESISTANT CERAMIC, style_designator: WELDING. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-282-0450, 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
M24149/1-557
NSN: 5307-01-282-0450
FSC: 5307 — Studs
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
thread_class2A NUT THREAD A
thread_length0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
shoulder_length0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
special_featuresFURNISHED WITH ARC SHIELD OF HEAT RESISTANT CERAMIC
style_designatorWELDING
thread_directionRIGHT-HAND NUT THREAD
features_providedHEAT SHIELD
shoulder_diameter0.625 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES NUT THREAD IN
unthreaded_end_length3.594 INCHES MINIMUM AND 3.688 INCHES MAXIMUM IN
unthreaded_end_diameter0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
NSN5307-01-282-0450
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M24149/1-557 · 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
•
THREAD LENGTH: 0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
STYLE DESIGNATOR: WELDING
•
UNTHREADED END DIAMETER: 0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
•
LENGTH EXCLUDING FLUXED WELDING TIP: 4.469 INCHES MINIMUM AND 4.531 INCHES MAXIMUM IN
•
FEATURES PROVIDED: HEAT SHIELD
•
UNTHREADED END LENGTH: 3.594 INCHES MINIMUM AND 3.688 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.375 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATORWELDING
UNTHREADED END DIAMETER0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
LENGTH EXCLUDING FLUXED WELDING TIP4.469 INCHES MINIMUM AND 4.531 INCHES MAXIMUM IN
FEATURES PROVIDEDHEAT SHIELD
UNTHREADED END LENGTH3.594 INCHES MINIMUM AND 3.688 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 4 CLASS
SHOULDER DIAMETER0.625 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
MIL-S-24149/1Reference document
Same NSN cross-reference
Reference document — Identification reference
97-63-719Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
302-5563048 ITEM N0.22Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-S-24149Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-S-24149/1-553Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M24149/1-557?
M24149/1-557 is a STUD,WELDING.
What parts can replace M24149/1-557?
There are 5 known substitutes for M24149/1-557: MIL-S-24149/1, 97-63-719, 302-5563048 ITEM N0.22 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M24149/1-557?
M24149/1-557 is cataloged in the U.S. Government catalog under NSN 5307-01-282-0450. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.