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Technical Data Sheet
PartsTable / COMPONENT / 5/16-18UNC X .3 75LG
5/16-18UNC X .3 75LG ✓ 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 5/16-18UNC X .3 75LG 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 5305-00-206-4674, 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
5/16-18UNC X .3 75LG
NSN: 5305-00-206-4674
FSC: 5305
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number5/16-18UNC X .3 75LG
NSN5305-00-206-4674
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5/16-18UNC X .3 75LG · 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
•
THREAD QUANTITY PER INCH: 18
•
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 6 STYLE
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY MATERIAL
•
WIDTH ACROSS FLATS: 0.156 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
THREAD QUANTITY PER INCH18
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 6 STYLE
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL
WIDTH ACROSS FLATS0.156 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLEHEXAGON
HEAD STYLEHEADLESS (SETSCREW)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
FFS103TYPE3STYLE6Interchangeable
interchangeable cross-reference
interchangeable
223042Interchangeable
interchangeable cross-reference
interchangeable
223150Interchangeable
interchangeable cross-reference
interchangeable
312-35018Interchangeable
interchangeable cross-reference
interchangeable
S4700H3163714REVAPC15Interchangeable
interchangeable cross-reference
interchangeable
N52606PC15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5/16-18UNC X .3 75LG?
5/16-18UNC X .3 75LG is a 5/16-18UNC X .3 75LG.
What parts can replace 5/16-18UNC X .3 75LG?
There are 19 known substitutes for 5/16-18UNC X .3 75LG: FFS103TYPE3STYLE6, 223042, 223150 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5/16-18UNC X .3 75LG?
5/16-18UNC X .3 75LG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-206-4674. 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