PartsTable
Technical Data Sheet

M63540/1-9C — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

M63540/1-9C: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include head_length: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN, thread_class: 2A NUT THREAD A, head_diameter: 0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, thread_length: 0.400 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, locking_feature: SELF-CLINCHING HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-188-5229, 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
M63540/1-9C
NSN: 5307-01-188-5229
FSC: 5307 — Studs
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
head_length0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
thread_class2A NUT THREAD A
head_diameter0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_length0.400 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN
overall_length0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
locking_featureSELF-CLINCHING HEAD
style_designatorSELF-LOCKING
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.112 INCHES NUT THREAD IN
thread_quantity_per_inch40 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) NUT THREAD
NSN5307-01-188-5229
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M63540/1-9C · 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: 0.400 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.112 INCHES NUT THREAD IN
•
HEAD LENGTH: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
•
LOCKING FEATURE: SELF-CLINCHING HEAD
•
THREAD CLASS: 2A NUT THREAD A
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.400 INCHES MINIMUM AND 0.440 INCHES MAXIMUM NUT THREAD IN
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.112 INCHES NUT THREAD IN
HEAD LENGTH0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
LOCKING FEATURESELF-CLINCHING HEAD
THREAD CLASS2A NUT THREAD A
THREAD QUANTITY PER INCH40 NUT THREAD
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 308 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385
SUBSTITUTES & CROSS-REFERENCES 8
990214-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
704AS9965-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-S-63540/1Reference document
Same NSN cross-reference
Reference document — Identification reference
85955700-09Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
FHS-440-8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1811659-132Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M63540/1-9C?
M63540/1-9C is a STUD,SELF-LOCKING.
What parts can replace M63540/1-9C?
There are 8 known substitutes for M63540/1-9C: 990214-7, 704AS9965-1, MIL-S-63540/1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M63540/1-9C?
M63540/1-9C is cataloged in the U.S. Government catalog under NSN 5307-01-188-5229. 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.