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PartsTable / COMPONENT / RY-148623 PIECE 81
RY-148623 PIECE 81 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL, thread_class: 2A A, fastener_length: 0.375 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.250 INCHES IN, thread_quantity_per_inch: 20. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-272-2569, 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
RY-148623 PIECE 81
NSN: 5305-01-272-2569
FSC: 5305
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
thread_class2A A
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
material_document_and_classificationQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5305-01-272-2569
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RY-148623 PIECE 81 · 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 QUANTITY PER INCH: 20
•
MATERIAL: NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD CLASS: 2A A
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
MATERIALNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD CLASS2A A
FASTENER LENGTH0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
3-43905-1Interchangeable
interchangeable cross-reference
interchangeable
51325Interchangeable
interchangeable cross-reference
interchangeable
051-0325-0001Interchangeable
interchangeable cross-reference
interchangeable
4D6052Interchangeable
interchangeable cross-reference
interchangeable
S1325Interchangeable
interchangeable cross-reference
interchangeable
598-301-1894090REVAPC47Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RY-148623 PIECE 81?
RY-148623 PIECE 81 is a SETSCREW.
What parts can replace RY-148623 PIECE 81?
There are 9 known substitutes for RY-148623 PIECE 81: 3-43905-1, 51325, 051-0325-0001 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RY-148623 PIECE 81?
RY-148623 PIECE 81 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-272-2569. 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