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K-8444359-138 — STUD,SHOULDERED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

K-8444359-138: STUD,SHOULDERED.

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145, thread_length: 1.094 INCHES NOMINAL NUT THREAD IN, overall_length: 2.875 INCHES NOMINAL IN, shoulder_length: 0.125 INCHES NOMINAL IN, style_designator: SHOULDERED, nominal_thread_size: 0.625 INCHES NUT THREAD IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-265-1248, 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
K-8444359-138
NSN: 5307-01-265-1248
FSC: 5307 — Studs
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145
thread_length1.094 INCHES NOMINAL NUT THREAD IN
overall_length2.875 INCHES NOMINAL IN
shoulder_length0.125 INCHES NOMINAL IN
style_designatorSHOULDERED
nominal_thread_size0.625 INCHES NUT THREAD IN
thread_quantity_per_inch11 STUD THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
material_document_and_classificationASTM A193 GR B7 ASSN STD ALL MATERIAL RESPONSES
NSN5307-01-265-1248
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: K-8444359-138 · 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
•
THREAD LENGTH: 0.750 INCHES NOMINAL STUD THREAD IN
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A193 GR B7 ASSN STD ALL MATERIAL RESPONSES
•
NOMINAL THREAD SIZE: 0.625 INCHES NUT THREAD IN
•
THREAD QUANTITY PER INCH: 11 NUT THREAD
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.750 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH1.094 INCHES NOMINAL NUT THREAD IN
STYLE DESIGNATORSHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A193 GR B7 ASSN STD ALL MATERIAL RESPONSES
OVERALL LENGTH2.875 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.625 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.625 INCHES STUD THREAD IN
THREAD QUANTITY PER INCH11 NUT THREAD
THREAD QUANTITY PER INCH11 STUD THREAD
MATERIALSTEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145
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
8444359-138Reference 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
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FREQUENTLY ASKED QUESTIONS
What is K-8444359-138?
K-8444359-138 is a STUD,SHOULDERED.
What parts can replace K-8444359-138?
There is 1 known substitute for K-8444359-138: 8444359-138. Substitute compatibility should be verified for your specific system.
What is the NSN for K-8444359-138?
K-8444359-138 is cataloged in the U.S. Government catalog under NSN 5307-01-265-1248. 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.