PartsTable
Technical Data Sheet
MS51989-104-11 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, thread_class: 3A NUT THREAD A, thread_length: 0.425 INCHES MINIMUM AND 0.455 INCHES MAXIMUM NUT THREAD IN, overall_length: 1.113 INCHES MINIMUM AND 1.143 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES NUT THD, hardness_rating: 26.0 ROCKWELL C MINIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-006-4943, 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
MS51989-104-11
NSN: 5307-00-006-4943
FSC: 5307
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4130
thread_class3A NUT THREAD A
thread_length0.425 INCHES MINIMUM AND 0.455 INCHES MAXIMUM NUT THREAD IN
overall_length1.113 INCHES MINIMUM AND 1.143 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES NUT THD
hardness_rating26.0 ROCKWELL C MINIMUM
locking_featureRING, LOCK SERRATED
style_designatorLOCKED IN
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OVERALL
serration_quantity13
nominal_thread_size0.190 INCHES NUT THREAD IN
NSN5307-00-006-4943
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51989-104-11 · 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
DISTANCE FROM SERRATED PORTION TO NUT END: 0.673 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LOCKING FEATURE: RING, LOCK SERRATED
THREAD QUANTITY PER INCH: 20 STUD THREAD
THREAD CLASS: 3A NUT THREAD A
NOMINAL THREAD SIZE: 0.250 INCHES STUD THREAD IN
THREAD DIRECTION: RIGHT-HAND NUT THREAD
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM SERRATED PORTION TO NUT END0.673 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
OVERALL LENGTH1.113 INCHES MINIMUM AND 1.143 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LOCKING FEATURERING, LOCK SERRATED
THREAD QUANTITY PER INCH20 STUD THREAD
THREAD CLASS3A NUT THREAD A
NOMINAL THREAD SIZE0.250 INCHES STUD THREAD IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
DISTANCE FROM SERRATED PORTION TO STUD END0.425 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
SURFACE FINISH32.0 MICROINCHES NUT THD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
113767Interchangeable
interchangeable cross-reference
interchangeable
77091Interchangeable
interchangeable cross-reference
interchangeable
D77091Interchangeable
interchangeable cross-reference
interchangeable
70457Interchangeable
interchangeable cross-reference
interchangeable
76132Interchangeable
interchangeable cross-reference
interchangeable
90MA012-621-R134A PC72Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51989-104-11?
MS51989-104-11 is a STUD,LOCKED IN.
What parts can replace MS51989-104-11?
There are 9 known substitutes for MS51989-104-11: 113767, 77091, D77091 and 6 more. Substitute compatibility should be verified for your specific system.
Is MS51989-104-11 still available?
MS51989-104-11 is currently cancelled.
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