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Technical Data Sheet
PartsTable / COMPONENT / 0.375-16UNC-3A X 0.875
0.375-16UNC-3A X 0.875 ✓ 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 0.375-16UNC-3A X 0.875 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-354-4678, 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
0.375-16UNC-3A X 0.875
NSN: 5305-01-354-4678
FSC: 5305
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part Number0.375-16UNC-3A X 0.875
NSN5305-01-354-4678
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0.375-16UNC-3A X 0.875 · 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 CLASS: 3A A
•
MATERIAL: NICKEL ALLOY OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FASTENER LENGTH: 0.875 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD QUANTITY PER INCH: 16
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
MATERIALNICKEL ALLOY OVERALL
SPECIAL FEATURESSCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FASTENER LENGTH0.875 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
803-4385050 PIECE 36Interchangeable
interchangeable cross-reference
interchangeable
803-4385050 PIECE 67L1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222 TY IIL1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222 TY IIInterchangeable
interchangeable cross-reference
interchangeable
3/8-16UNC-3A X 7/8L1Interchangeable
interchangeable cross-reference
interchangeable
TYPE 1 3/8-16UNC-3A X 7/8LGL1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.375-16UNC-3A X 0.875?
0.375-16UNC-3A X 0.875 is a 0.375-16UNC-3A X 0.875.
What parts can replace 0.375-16UNC-3A X 0.875?
There are 29 known substitutes for 0.375-16UNC-3A X 0.875: 803-4385050 PIECE 36, 803-4385050 PIECE 67L1, MIL-DTL-1222 TY IIL1 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0.375-16UNC-3A X 0.875?
0.375-16UNC-3A X 0.875 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-354-4678. 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