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MS51833-203-13 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS51833-203-13: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_class: 2A NUT THREAD A, thread_length: 0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM STUD THREAD IN, overall_length: 1.204 INCHES MINIMUM AND 1.294 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES STUD THD, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-010-2609, 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
MS51833-203-13
NSN: 5307-01-010-2609
FSC: 5307 — Studs
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class2A NUT THREAD A
thread_length0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM STUD THREAD IN
overall_length1.204 INCHES MINIMUM AND 1.294 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES STUD THD
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
locking_featureRING, LOCK KEYED
special_features160,000 PSI MIN TS
style_designatorLOCKED IN
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM AND CHROMATE OVERALL
nominal_thread_size0.312 INCHES STUD THREAD IN
NSN5307-01-010-2609
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51833-203-13 · 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 NUT THD
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM STUD THREAD IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: LOCKED IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES NUT THD
SURFACE FINISH63.0 MICROINCHES SHANK
SURFACE FINISH32.0 MICROINCHES STUD THD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM STUD THREAD IN
THREAD LENGTH0.422 INCHES MINIMUM AND 0.452 INCHES MAXIMUM NUT THREAD IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORLOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.204 INCHES MINIMUM AND 1.294 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 2
5307PL0885337Reference document
Same NSN cross-reference
Reference document — Informative reference only
KNS9000-5-13Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS51833-203-13?
MS51833-203-13 is a STUD,LOCKED IN.
What parts can replace MS51833-203-13?
There are 2 known substitutes for MS51833-203-13: 5307PL0885337, KNS9000-5-13. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51833-203-13?
MS51833-203-13 is cataloged in the U.S. Government catalog under NSN 5307-01-010-2609. 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.