PartsTable
Technical Data Sheet
81127S41-20063ALT6PC3 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 3135, thread_class: 3A NUT THREAD A, thread_length: 0.500 INCHES MAXIMUM STUD THREAD IN, overall_length: 2.062 INCHES NOMINAL IN, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 3.0 ROCKWELL C MAXIMUM, shoulder_length: 0.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-206-7594, 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
81127S41-20063ALT6PC3
NSN: 5307-00-206-7594
FSC: 5307
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 3135
thread_class3A NUT THREAD A
thread_length0.500 INCHES MAXIMUM STUD THREAD IN
overall_length2.062 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 3.0 ROCKWELL C MAXIMUM
shoulder_length0.875 INCHES NOMINAL IN
special_features0.062 IN. PORTION BETWEEN THREADS ON EACH END AND UNTHREADED SHOULDER,MACHINED 0.031 IN. RADIUS IN
style_designatorSHOULDERED
thread_directionRIGHT-HAND STUD THREAD
shoulder_diameter0.4363 INCHES MINIMUM AND 0.4368 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES STUD THREAD IN
cotter_pin_hole_diameter0.128 INCHES NOMINAL FIRST HOLE IN
NSN5307-00-206-7594
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 81127S41-20063ALT6PC3 · 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
STYLE DESIGNATOR: SHOULDERED
THREAD SERIES DESIGNATOR: UNF STUD THREAD
SHOULDER LENGTH: 0.875 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
THREAD CLASS: 3A NUT THREAD A
THREAD DIRECTION: RIGHT-HAND NUT THREAD
THREAD QUANTITY PER INCH: 24 STUD THREAD
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSHOULDERED
THREAD SERIES DESIGNATORUNF STUD THREAD
SHOULDER LENGTH0.875 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
THREAD CLASS3A NUT THREAD A
THREAD SERIES DESIGNATORUNF NUT THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD QUANTITY PER INCH24 STUD THREAD
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD IN
COTTER PIN HOLE DIAMETER0.128 INCHES NOMINAL FIRST HOLE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
321012-2Interchangeable
interchangeable cross-reference
interchangeable
321012-1Interchangeable
interchangeable cross-reference
interchangeable
321012Interchangeable
interchangeable cross-reference
interchangeable
81127S41-25063ALT3PC3Interchangeable
Same NIIN cross-reference
interchangeable
3235951Interchangeable
Same NIIN cross-reference
interchangeable
81127S41-20763ALT1PC3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81127S41-20063ALT6PC3?
81127S41-20063ALT6PC3 is a STUD,SHOULDERED.
What parts can replace 81127S41-20063ALT6PC3?
There are 8 known substitutes for 81127S41-20063ALT6PC3: 321012-2, 321012-1, 321012 and 5 more. Substitute compatibility should be verified for your specific system.
Is 81127S41-20063ALT6PC3 still available?
81127S41-20063ALT6PC3 is currently cancelled.
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