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DAA7278D129-001 — STUD,SHOULDERED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

DAA7278D129-001: STUD,SHOULDERED.

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630, thread_class: 2A NUT THREAD A, thread_length: 0.860 INCHES NOMINAL NUT THREAD IN, overall_length: 2.500 INCHES NOMINAL IN, shoulder_length: 0.187 INCHES NOMINAL IN, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-388-3704, 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
DAA7278D129-001
NSN: 5307-01-388-3704
FSC: 5307 — Studs
CAGE: 1W025 — NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 630
thread_class2A NUT THREAD A
thread_length0.860 INCHES NOMINAL NUT THREAD IN
overall_length2.500 INCHES NOMINAL IN
shoulder_length0.187 INCHES NOMINAL IN
thread_directionRIGHT-HAND NUT THREAD
shoulder_diameter1.000 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.625 INCHES STUD THREAD IN
distance_across_flats0.490 INCHES NOMINAL IN
stud_end_shank_length0.188 INCHES NOMINAL IN
stud_end_shank_diameter0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN
NSN5307-01-388-3704
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: DAA7278D129-001 · 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: 0.418 INCHES NOMINAL STUD THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.625 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.418 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH0.860 INCHES NOMINAL NUT THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH2.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.625 INCHES STUD THREAD IN
NOMINAL THREAD SIZE0.750 INCHES NUT THREAD IN
SHOULDER DIAMETER1.000 INCHES NOMINAL IN
STUD END SHANK DIAMETER0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DAA7278D129-001?
DAA7278D129-001 is a STUD,SHOULDERED.
What is the NSN for DAA7278D129-001?
DAA7278D129-001 is cataloged in the U.S. Government catalog under NSN 5307-01-388-3704. 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.