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3133850 — STUD,SHOULDERED AND STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3133850: STUD,SHOULDERED AND STEPPED.

The STUD,SHOULDERED AND STEPPED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485, thread_class: 2A STUD THREAD A, thread_length: 0.281 INCHES NOMINAL NUT THREAD IN, overall_length: 2.500 INCHES NOMINAL IN, shoulder_length: 0.438 INCHES NOMINAL IN, style_designator: SHOULDERED AND STEPPED. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-211-0767, 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
3133850
NSN: 5307-01-211-0767
FSC: 5307 — Studs
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485
thread_class2A STUD THREAD A
thread_length0.281 INCHES NOMINAL NUT THREAD IN
overall_length2.500 INCHES NOMINAL IN
shoulder_length0.438 INCHES NOMINAL IN
style_designatorSHOULDERED AND STEPPED
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.164 INCHES NUT THREAD IN
nut_end_shank_length0.969 INCHES NOMINAL IN
distance_across_flats0.375 INCHES NOMINAL IN
stud_end_shank_length0.219 INCHES NOMINAL IN
nut_end_shank_diameter0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
NSN5307-01-211-0767
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3133850 · 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
•
NUT END SHANK DIAMETER: 0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.281 INCHES NOMINAL NUT THREAD IN
•
STYLE DESIGNATOR: SHOULDERED AND STEPPED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-P-639 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
TECHNICAL CHARACTERISTICS
NUT END SHANK DIAMETER0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
THREAD LENGTH0.281 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH0.593 INCHES NOMINAL STUD THREAD IN
STYLE DESIGNATORSHOULDERED AND STEPPED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-P-639 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH2.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
NOMINAL THREAD SIZE0.164 INCHES NUT THREAD IN
SUBSTITUTES & CROSS-REFERENCES 3
101A427AC1Reference document
Same NSN cross-reference
Reference document — Secondary reference
E-3288508 PIECE 39Reference document
Same NSN cross-reference
Reference document — Secondary reference
V-5571403Reference 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 3133850?
3133850 is a STUD,SHOULDERED AND STEPPED.
What parts can replace 3133850?
There are 3 known substitutes for 3133850: 101A427AC1, E-3288508 PIECE 39, V-5571403. Substitute compatibility should be verified for your specific system.
What is the NSN for 3133850?
3133850 is cataloged in the U.S. Government catalog under NSN 5307-01-211-0767. 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.