MS51989E204-7 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MS51989E204-7: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660, thread_class: 3A STUD THREAD A, thread_length: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.998 INCHES NOMINAL IN, locking_feature: RING, LOCK SERRATED, style_designator: LOCKED IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-734-0051, 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

MS51989E204-7

NSN: 5307-01-734-0051
FSC: 5307 — Studs
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)

SPECIFICATIONS

material	IRON ALLOY 660
thread_class	3A STUD THREAD A
thread_length	0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM NUT THREAD IN
overall_length	0.998 INCHES NOMINAL IN
locking_feature	RING, LOCK SERRATED
style_designator	LOCKED IN
thread_direction	RIGHT-HAND NUT THREAD
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.2500 INCHES STUD THREAD IN
thread_quantity_per_inch	28 STUD THREAD
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD
specification/standard_data	0U583-SAE AS51989 INTERNATIONAL STD/SPEC
NSN	5307-01-734-0051

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: METHOD 1,TYPE 2 OR 8 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL

•

DISTANCE FROM SERRATED PORTION TO NUT END: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM NUT THREAD IN

•

STYLE DESIGNATOR: LOCKED IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5731,5732,5734 OR 5737 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE

•

DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD: 0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	METHOD 1,TYPE 2 OR 8 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM SERRATED PORTION TO NUT END	0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
THREAD LENGTH	0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH	0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM STUD THREAD IN
STYLE DESIGNATOR	LOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5731,5732,5734 OR 5737 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH	0.998 INCHES NOMINAL IN
DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD	0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD

SUBSTITUTES & CROSS-REFERENCES 1

SAE AS51989Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MS51989E204-7?

MS51989E204-7 is a STUD,LOCKED IN.

What parts can replace MS51989E204-7?

There is 1 known substitute for MS51989E204-7: SAE AS51989. Substitute compatibility should be verified for your specific system.

What is the NSN for MS51989E204-7?

MS51989E204-7 is cataloged in the U.S. Government catalog under NSN 5307-01-734-0051. This indicates validated use in U.S. government and defense supply chains.

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