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KNS9031-3-9 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

KNS9031-3-9: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660, thread_class: 2A STUD THREAD A, thread_length: 0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.859 INCHES MINIMUM AND 0.889 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES NUT THD, locking_feature: RING, LOCK KEYED. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-216-1459, 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
KNS9031-3-9
NSN: 5307-01-216-1459
FSC: 5307 — Studs
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
materialIRON ALLOY 660
thread_class2A STUD THREAD A
thread_length0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN
overall_length0.859 INCHES MINIMUM AND 0.889 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES NUT THD
locking_featureRING, LOCK KEYED
style_designatorLOCKED IN
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.190 INCHES NUT THREAD IN
thread_quantity_per_inch18 STUD THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
NSN5307-01-216-1459
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: KNS9031-3-9 · 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 FINISH: 63.0 MICROINCHES STUD THD
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN
•
STYLE DESIGNATOR: LOCKED IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES STUD THD
SURFACE FINISH32.0 MICROINCHES NUT THD
SURFACE FINISH63.0 MICROINCHES SHANK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM STUD THREAD IN
STYLE DESIGNATORLOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5734 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.859 INCHES MINIMUM AND 0.889 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
SUBSTITUTES & CROSS-REFERENCES 1
MS51833A201-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 KNS9031-3-9?
KNS9031-3-9 is a STUD,LOCKED IN.
What parts can replace KNS9031-3-9?
There is 1 known substitute for KNS9031-3-9: MS51833A201-9. Substitute compatibility should be verified for your specific system.
What is the NSN for KNS9031-3-9?
KNS9031-3-9 is cataloged in the U.S. Government catalog under NSN 5307-01-216-1459. This indicates validated use in U.S. government and defense supply chains.
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