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PartsTable / COMPONENT / B68161
B68161 ✓ 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: 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.341 INCHES MINIMUM AND 0.375 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 5305-00-069-0301, 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
B68161
NSN: 5305-00-069-0301
FSC: 5305
CAGE: K0967 — MBDA UK LTD (GBR)
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_height0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.341 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
fastener_length0.375 INCHES NOMINAL IN
hardness_rating80.0 ROCKWELL B MINIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-00-069-0301
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B68161 · 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 HEIGHT: 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 40
•
THREAD CLASS: 3A A
•
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD DIAMETER: 0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH40
THREAD CLASS3A A
HARDNESS RATING80.0 ROCKWELL B MINIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD DIAMETER0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
FASTENER LENGTH0.375 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
5305PL1370179Interchangeable
interchangeable cross-reference
interchangeable
74455244010Interchangeable
interchangeable cross-reference
interchangeable
12-Z-1007-3Interchangeable
interchangeable cross-reference
interchangeable
947463-406Interchangeable
Same NIIN cross-reference
interchangeable
15650103-6Interchangeable
Same NIIN cross-reference
interchangeable
1C6368P06Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B68161?
B68161 is a SCREW,CAP,SOCKET HEAD.
What parts can replace B68161?
There are 9 known substitutes for B68161: 5305PL1370179, 74455244010, 12-Z-1007-3 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B68161?
B68161 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-069-0301. 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