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Technical Data Sheet
PartsTable / COMPONENT / 16990P5C16D
16990P5C16D ✓ 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 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, thread_length: 0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN, fastener_length: 0.984 INCHES MINIMUM AND 1.016 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 5305-00-003-6816, 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
16990P5C16D
NSN: 5305-00-003-6816
FSC: 5305
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT COUNTERSUNK
thread_class3A A
head_diameter0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
thread_length0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN
fastener_length0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
locking_featurePELLET THREADS
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
surface_treatmentCADMIUM AND CHROMATE OVERALL
internal_drive_styleHEXAGON
NSN5305-00-003-6816
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 16990P5C16D · 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
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FASTENER LENGTH: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD DIAMETER: 0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
•
LOCKING FEATURE: PELLET THREADS
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.312 INCHES IN
FASTENER LENGTH0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
THREAD LENGTH0.675 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
HEAD DIAMETER0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
LOCKING FEATUREPELLET THREADS
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
30348Interchangeable
interchangeable cross-reference
interchangeable
60-348Interchangeable
interchangeable cross-reference
interchangeable
16990N5C16DInterchangeable
Same NIIN cross-reference
interchangeable
67A247C6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 16990P5C16D?
16990P5C16D is a SCREW,CAP,SOCKET HEAD.
What parts can replace 16990P5C16D?
There are 4 known substitutes for 16990P5C16D: 30348, 60-348, 16990N5C16D and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 16990P5C16D?
16990P5C16D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-003-6816. 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