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12420839 — STUD,POSITIVE LOCK

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12420839: STUD,POSITIVE LOCK.

The STUD,POSITIVE LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 STUD, head_diameter: 17.5 MILLIMETERS NOMINAL MM, undercut_length: 4.0 MILLIMETERS NOMINAL MM, special_features: END IS CHAMFERED WITH SLOT; 1.8 MILLIMETER DEEP MM, surface_treatment: PASSIVATE STUD, shank_major_diameter: 98.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-442-3597, 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
12420839
NSN: 5325-01-442-3597
FSC: 5325 — Fastening Devices
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 303 STUD
head_diameter17.5 MILLIMETERS NOMINAL MM
undercut_length4.0 MILLIMETERS NOMINAL MM
special_featuresEND IS CHAMFERED WITH SLOT; 1.8 MILLIMETER DEEP MM
surface_treatmentPASSIVATE STUD
shank_major_diameter98.0 MILLIMETERS NOMINAL MM
major_diameter_length4.4 MILLIMETERS NOMINAL MM
stud_shank_overall_height10.8 MILLIMETERS NOMINAL MM
positive_lock_stud_head_styleSTUD HEAD
positive_lock_stud_shank_styleSTUD SHANK
material_document_and_classificationASTMA582 ASSN STD SINGLE MATERIAL RESPONSE STUD
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STUD
NSN5325-01-442-3597
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12420839 · 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
•
UNDERCUT LENGTH: 4.0 MILLIMETERS NOMINAL MM
•
POSITIVE LOCK STUD SHANK STYLE: STUD SHANK
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STUD
•
MAJOR DIAMETER LENGTH: 4.4 MILLIMETERS NOMINAL MM
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA582 ASSN STD SINGLE MATERIAL RESPONSE STUD
•
SURFACE TREATMENT: PASSIVATE STUD
•
MATERIAL: STEEL COMP 303 STUD
TECHNICAL CHARACTERISTICS
UNDERCUT LENGTH4.0 MILLIMETERS NOMINAL MM
POSITIVE LOCK STUD SHANK STYLESTUD SHANK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STUD
MAJOR DIAMETER LENGTH4.4 MILLIMETERS NOMINAL MM
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA582 ASSN STD SINGLE MATERIAL RESPONSE STUD
SPECIAL FEATURESEND IS CHAMFERED WITH SLOT; 1.8 MILLIMETER DEEP MM
SURFACE TREATMENTPASSIVATE STUD
MATERIALSTEEL COMP 303 STUD
STUD SHANK OVERALL HEIGHT10.8 MILLIMETERS NOMINAL MM
POSITIVE LOCK STUD HEAD STYLESTUD HEAD
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
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 12420839?
12420839 is a STUD,POSITIVE LOCK.
What is the NSN for 12420839?
12420839 is cataloged in the U.S. Government catalog under NSN 5325-01-442-3597. This indicates validated use in U.S. government and defense supply chains.
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