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ST5071-28 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST5071-28: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include special_features: APPLICATION OF THIS ITEM IS UNIQUE AND CRITICAL TO THE F119 ENGINE, end_item_identification: F119-PW-100-ENGINE F22-RAPTOR, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-691-6040, 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
ST5071-28
NSN: 5307-01-691-6040
FSC: 5307 — Studs
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
special_featuresAPPLICATION OF THIS ITEM IS UNIQUE AND CRITICAL TO THE F119 ENGINE
end_item_identificationF119-PW-100-ENGINE F22-RAPTOR
criticality_code_justificationFEAT
NSN5307-01-691-6040
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST5071-28 · 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESAPPLICATION OF THIS ITEM IS UNIQUE AND CRITICAL TO THE F119 ENGINE
END ITEM IDENTIFICATIONF119-PW-100-ENGINE F22-RAPTOR
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST5071-28?
ST5071-28 is a STUD,LOCKED IN.
What is the NSN for ST5071-28?
ST5071-28 is cataloged in the U.S. Government catalog under NSN 5307-01-691-6040. 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.