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Technical Data Sheet
PartsTable / COMPONENT / MS16995-51B
MS16995-51B ✓ 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,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL, head_style: FLAT CHAMFER, head_height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 0.759 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-243-7157, 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
MS16995-51B
NSN: 5305-00-243-7157
FSC: 5305
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
head_styleFLAT CHAMFER
head_height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_length0.759 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
fastener_length0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
hardness_rating80.0 ROCKWELL B MINIMUM OVERALL
thread_directionRIGHT-HAND
width_across_flats0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
minimum_yield_strength30000 POUNDS PER SQUARE INCH LBS
NSN5305-00-243-7157
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS16995-51B · 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
•
FASTENER LENGTH: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
•
MINIMUM YIELD STRENGTH: 30000 POUNDS PER SQUARE INCH LBS
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NONDEFINITIVE SPEC/STD DATA: 6 TYPE
•
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM OVERALL
•
MINIMUM TENSILE STRENGTH: 80000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
MINIMUM YIELD STRENGTH30000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NONDEFINITIVE SPEC/STD DATA6 TYPE
HARDNESS RATING80.0 ROCKWELL B MINIMUM OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH LBS
THREAD QUANTITY PER INCH20
THREAD LENGTH0.759 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
301571Interchangeable
interchangeable cross-reference
interchangeable
1004927Interchangeable
interchangeable cross-reference
interchangeable
5/49Interchangeable
interchangeable cross-reference
interchangeable
894123-6231Interchangeable
interchangeable cross-reference
interchangeable
FFS86Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS16995-51B?
MS16995-51B is a SCREW,CAP,SOCKET HEAD.
What parts can replace MS16995-51B?
There are 5 known substitutes for MS16995-51B: 301571, 1004927, 5/49 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS16995-51B?
MS16995-51B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-243-7157. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026