PartsTable
Technical Data Sheet
Download PDF

SF5902E803-12 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SF5902E803-12: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400, thread_class: 3A NUT THREAD A, thread_length: 0.496 INCHES MINIMUM AND 0.546 INCHES MAXIMUM STUD THREAD IN, overall_length: 1.388 INCHES MINIMUM AND 1.458 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES STUD THD, hardness_rating: 35.0 ROCKWELL C MINIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-159-1178, 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
SF5902E803-12
NSN: 5307-01-159-1178
FSC: 5307 — Studs
CAGE: 83324 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV ROSAN PRODUCTS (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R56400
thread_class3A NUT THREAD A
thread_length0.496 INCHES MINIMUM AND 0.546 INCHES MAXIMUM STUD THREAD IN
overall_length1.388 INCHES MINIMUM AND 1.458 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES STUD THD
hardness_rating35.0 ROCKWELL C MINIMUM
locking_featureRING, LOCK SERRATED
style_designatorLOCKED IN
thread_directionRIGHT-HAND STUD THREAD
serration_quantity17
nominal_thread_size0.250 INCHES NUT THREAD IN
thread_pitch_diameters+0.3358 TO 0.3378 INCHES STUD THREAD IN
NSN5307-01-159-1178
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SF5902E803-12 · 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 FINISH: 63.0 MICROINCHES STUD THD
•
DISTANCE FROM SERRATED PORTION TO NUT END: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM NUT THREAD IN
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM
•
STYLE DESIGNATOR: LOCKED IN
•
THREAD PITCH DIAMETERS: +0.3358 TO 0.3378 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES STUD THD
SURFACE FINISH32.0 MICROINCHES NUT THD
DISTANCE FROM SERRATED PORTION TO NUT END0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
THREAD LENGTH0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH0.496 INCHES MINIMUM AND 0.546 INCHES MAXIMUM STUD THREAD IN
HARDNESS RATING35.0 ROCKWELL C MINIMUM
STYLE DESIGNATORLOCKED IN
THREAD PITCH DIAMETERS+0.3358 TO 0.3378 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4967 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.388 INCHES MINIMUM AND 1.458 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 1
MS51992E803-12Reference 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
Ready to buy SF5902E803-12?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is SF5902E803-12?
SF5902E803-12 is a STUD,LOCKED IN.
What parts can replace SF5902E803-12?
There is 1 known substitute for SF5902E803-12: MS51992E803-12. Substitute compatibility should be verified for your specific system.
What is the NSN for SF5902E803-12?
SF5902E803-12 is cataloged in the U.S. Government catalog under NSN 5307-01-159-1178. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — SF5902E803-12

✓ 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.