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Technical Data Sheet
PartsTable / COMPONENT / 566-6404316 FIND 25
566-6404316 FIND 25 ✓ 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 STUD,CONTINUOUS THREAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY AND COPPER ALLOY AND ALUMINUM ALLOY, thread_class: 3A LOCATION NOT OTHERWISE SPECIFIED A, overall_length: 4.750 INCHES NOMINAL IN, thread_direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED, nominal_thread_size: 0.625 INCHES LOCATION NOT OTHERWISE SPECIFIED IN, thread_quantity_per_inch: 11 LOCATION NOT OTHERWISE SPECIFIED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-306-7527, 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
566-6404316 FIND 25
NSN: 5307-01-306-7527
FSC: 5307
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY AND COPPER ALLOY AND ALUMINUM ALLOY
thread_class3A LOCATION NOT OTHERWISE SPECIFIED A
overall_length4.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
nominal_thread_size0.625 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
thread_quantity_per_inch11 LOCATION NOT OTHERWISE SPECIFIED
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
nondefinitive_spec/std_data4 TYPE
departure_from_cited_documentQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
criticality_code_justificationZZZW
material_document_and_classificationQQ-N-286,GR 500 FED SPEC FED SPEC SINGLE MATERIAL RESPONSE
NSN5307-01-306-7527
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 566-6404316 FIND 25 · 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
•
NONDEFINITIVE SPEC/STD DATA: 4 TYPE
•
MATERIAL: NICKEL ALLOY AND COPPER ALLOY AND ALUMINUM ALLOY
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
DEPARTURE FROM CITED DOCUMENT: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286,GR 500 FED SPEC FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.750 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA4 TYPE
MATERIALNICKEL ALLOY AND COPPER ALLOY AND ALUMINUM ALLOY
CRITICALITY CODE JUSTIFICATIONZZZW
DEPARTURE FROM CITED DOCUMENTQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,GR 500 FED SPEC FED SPEC SINGLE MATERIAL RESPONSE
NOMINAL THREAD SIZE0.625 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
THREAD QUANTITY PER INCH11 LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MILS1222TYIVCLA5/811UNC3AX43/4Interchangeable
interchangeable cross-reference
interchangeable
MILS1222TYIVCLA5/811UNC3AX43/4L1Interchangeable
interchangeable cross-reference
interchangeable
5/8-11UNC-3A-X-4-3/4-INCHESInterchangeable
interchangeable cross-reference
interchangeable
211069508Interchangeable
Same NIIN cross-reference
interchangeable
5/8 - 11UNC - 3A X 4 3/4Interchangeable
Same NIIN cross-reference
interchangeable
MIL-S-1222Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 566-6404316 FIND 25?
566-6404316 FIND 25 is a STUD,CONTINUOUS THREAD.
What parts can replace 566-6404316 FIND 25?
There are 10 known substitutes for 566-6404316 FIND 25: MILS1222TYIVCLA5/811UNC3AX43/4, MILS1222TYIVCLA5/811UNC3AX43/4L1, 5/8-11UNC-3A-X-4-3/4-INCHES and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 566-6404316 FIND 25?
566-6404316 FIND 25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-306-7527. 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