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Technical Data Sheet
PartsTable / COMPONENT / 211052571
211052571 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include thread_class: 3A A, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.438 INCHES IN, thread_quantity_per_inch: 14, thread_series_designator: UNRC, criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-349-2210, 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
211052571
NSN: 5305-01-349-2210
FSC: 5305
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
thread_class3A A
thread_directionRIGHT-HAND
nominal_thread_diameter0.438 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNRC
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN5305-01-349-2210
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 211052571 · 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
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
THREAD CLASS: 3A A
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
THREAD QUANTITY PER INCH: 14
•
THREAD SERIES DESIGNATOR: UNRC
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.438 INCHES IN
THREAD CLASS3A A
CRITICALITY CODE JUSTIFICATIONZZZY
THREAD QUANTITY PER INCH14
THREAD SERIES DESIGNATORUNRC
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
211067317Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222 TY II GR500L1Interchangeable
interchangeable cross-reference
interchangeable
801-6404976 FIND 32Interchangeable
interchangeable cross-reference
interchangeable
211052571L1Interchangeable
Same NIIN cross-reference
interchangeable
801-6404976 FIND 32L1Interchangeable
Same NIIN cross-reference
interchangeable
DF330653 FIND 32L1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 211052571?
211052571 is a SCREW,MACHINE.
What parts can replace 211052571?
There are 7 known substitutes for 211052571: 211067317, MIL-DTL-1222 TY II GR500L1, 801-6404976 FIND 32 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 211052571?
211052571 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-349-2210. 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