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PartsTable / COMPONENT / 60-1066 PIECE NO. 977
60-1066 PIECE NO. 977 ✓ 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 60-1066 PIECE NO. 977 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 5305-01-424-1508, 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
60-1066 PIECE NO. 977
NSN: 5305-01-424-1508
FSC: 5305
CAGE: 27235 — HARDIE-TYNES CO., INC. (USA)
SPECIFICATIONS
Part Number60-1066 PIECE NO. 977
NSN5305-01-424-1508
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 60-1066 PIECE NO. 977 · 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: 18
•
MATERIAL DOCUMENT AND CLASSIFICATION: STEEL GRADE 5, CAGEC 27235 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2A A
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: HEXAGON
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH18
MATERIAL DOCUMENT AND CLASSIFICATIONSTEEL GRADE 5, CAGEC 27235 MFR REF SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
THREAD CLASS2A A
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEHEXAGON
FASTENER LENGTH0.625 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
350-RTInterchangeable
interchangeable cross-reference
interchangeable
918 42Interchangeable
interchangeable cross-reference
interchangeable
13342Interchangeable
interchangeable cross-reference
interchangeable
911-1112-525Interchangeable
interchangeable cross-reference
interchangeable
925-401XInterchangeable
interchangeable cross-reference
interchangeable
RLD60B0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 60-1066 PIECE NO. 977?
60-1066 PIECE NO. 977 is a 60-1066 PIECE NO. 977.
What parts can replace 60-1066 PIECE NO. 977?
There are 15 known substitutes for 60-1066 PIECE NO. 977: 350-RT, 918 42, 13342 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 60-1066 PIECE NO. 977?
60-1066 PIECE NO. 977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-424-1508. 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