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Technical Data Sheet
PartsTable / COMPONENT / 1/4-UNF X 3/4,C/S ZINC PLATED
1/4-UNF X 3/4,C/S ZINC PLATED ✓ 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 1/4-UNF X 3/4,C/S ZINC PLATED is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-068-0513, 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
1/4-UNF X 3/4,C/S ZINC PLATED
NSN: 5306-00-068-0513
FSC: 5306
CAGE: 57454 — CARDINAL INDUSTRIAL PRODUCTS CORP (USA)
SPECIFICATIONS
Part Number1/4-UNF X 3/4,C/S ZINC PLATED
NSN5306-00-068-0513
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1/4-UNF X 3/4,C/S ZINC PLATED · 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
•
MINIMUM TENSILE STRENGTH: 150000 POUNDS PER SQUARE INCH LBS
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 28
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD QUANTITY PER INCH28
MATERIALSTEEL OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD CLASS2A A
MINIMUM YIELD STRENGTH120000 POUNDS PER SQUARE INCH LBS
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
70008-6Interchangeable
interchangeable cross-reference
interchangeable
3436532Interchangeable
interchangeable cross-reference
interchangeable
68932Interchangeable
interchangeable cross-reference
interchangeable
AES01F250750AW9LX1Interchangeable
interchangeable cross-reference
interchangeable
S210NA38FAD14354BNPF1Interchangeable
interchangeable cross-reference
interchangeable
B1821AH025F075NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/4-UNF X 3/4,C/S ZINC PLATED?
1/4-UNF X 3/4,C/S ZINC PLATED is a 1/4-UNF X 3/4,C/S ZINC PLATED.
What parts can replace 1/4-UNF X 3/4,C/S ZINC PLATED?
There are 13 known substitutes for 1/4-UNF X 3/4,C/S ZINC PLATED: 70008-6, 3436532, 68932 and 10 more. Substitute compatibility should be verified for your specific system.
Is 1/4-UNF X 3/4,C/S ZINC PLATED still available?
1/4-UNF X 3/4,C/S ZINC PLATED is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026