PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS51861-72C
MS51861-72C ✓ 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 SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, head_style: PAN, head_height: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, head_diameter: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN, fastener_length: 1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-476-7554, 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
MS51861-72C
NSN: 5305-00-476-7554
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
head_stylePAN
head_height0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
head_diameter0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
fastener_length1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
internal_drive_styleCROSS RECESS TYPE 1
nonmachine_thread_styleGIMLET POINT (TYPE A, AB OR BA)
nondefinitive_spec/std_dataAB TYPE
nonmachine_nominal_thread_diameter0.250 INCHES IN
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5305-00-476-7554
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51861-72C · 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
•
HEAD STYLE: PAN
•
FASTENER LENGTH: 1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
HEAD DIAMETER: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 410 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: AB TYPE
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEPAN
FASTENER LENGTH1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
HEAD DIAMETER0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
MATERIALSTEEL COMP 410 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
NONDEFINITIVE SPEC/STD DATAAB TYPE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
FF-S-107CInterchangeable
interchangeable cross-reference
interchangeable
80X658Interchangeable
interchangeable cross-reference
interchangeable
143189Interchangeable
interchangeable cross-reference
interchangeable
FFS107TYPECSSTYLE6SInterchangeable
interchangeable cross-reference
interchangeable
172046Interchangeable
interchangeable cross-reference
interchangeable
FFS107Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS51861-72C?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS51861-72C?
MS51861-72C is a SCREW,TAPPING.
What parts can replace MS51861-72C?
There are 18 known substitutes for MS51861-72C: FF-S-107C, 80X658, 143189 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51861-72C?
MS51861-72C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-476-7554. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS51861-72C

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026