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HS4471-1-12 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HS4471-1-12: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_class: 2A STUD THREAD A, thread_length: 0.640 INCHES NOMINAL NUT THREAD IN, overall_length: 2.670 INCHES NOMINAL IN, style_designator: LOCKED IN, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-581-8663, 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
HS4471-1-12
NSN: 5307-01-581-8663
FSC: 5307 — Studs
CAGE: 8V613 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class2A STUD THREAD A
thread_length0.640 INCHES NOMINAL NUT THREAD IN
overall_length2.670 INCHES NOMINAL IN
style_designatorLOCKED IN
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.500 INCHES STUD THREAD IN
supplementary_featuresLIGHTENING HOLE 0.250 DIA X 0.50 DEEP-ALL INCHES
end_item_identification1520-01-355-8250, HELICOPTER, ATTACK
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
NSN5307-01-581-8663
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HS4471-1-12 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
DISTANCE FROM SERRATED PORTION TO NUT END: 1.920 INCHES NOMINAL IN
•
THREAD LENGTH: 0.640 INCHES NOMINAL NUT THREAD IN
•
SUPPLEMENTARY FEATURES: LIGHTENING HOLE 0.250 DIA X 0.50 DEEP-ALL INCHES
•
STYLE DESIGNATOR: LOCKED IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626, 4140 CHROME MOLY STEEL, HEAT TREAT 16.000-180.000 PSI MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM SERRATED PORTION TO NUT END1.920 INCHES NOMINAL IN
THREAD LENGTH0.640 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH0.750 INCHES NOMINAL STUD THREAD IN
SUPPLEMENTARY FEATURESLIGHTENING HOLE 0.250 DIA X 0.50 DEEP-ALL INCHES
STYLE DESIGNATORLOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626, 4140 CHROME MOLY STEEL, HEAT TREAT 16.000-180.000 PSI MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH2.670 INCHES NOMINAL IN
DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD0.750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
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 1
HS4471Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HS4471-1-12?
HS4471-1-12 is a STUD,LOCKED IN.
What parts can replace HS4471-1-12?
There is 1 known substitute for HS4471-1-12: HS4471. Substitute compatibility should be verified for your specific system.
What is the NSN for HS4471-1-12?
HS4471-1-12 is cataloged in the U.S. Government catalog under NSN 5307-01-581-8663. This indicates validated use in U.S. government and defense supply chains.
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