PartsTable
Technical Data Sheet
PartsTable / COMPONENT / XA-766-12
XA-766-12 ✓ 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,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.591 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN, fastener_length: 3.875 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, width_between_flats: 1.450 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, nominal_thread_diameter: 1.000 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-127-1024, 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
XA-766-12
NSN: 5305-01-127-1024
FSC: 5305
CAGE: 74410 — SAF-HOLLAND, INC. (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.591 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
fastener_length3.875 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats1.450 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
nominal_thread_diameter1.000 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNS
NSN5305-01-127-1024
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: XA-766-12 · 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
•
HEAD HEIGHT: 0.591 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
THREAD SERIES DESIGNATOR: UNS
•
NOMINAL THREAD DIAMETER: 1.000 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 1.450 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 14
•
FASTENER LENGTH: 3.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.591 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNS
NOMINAL THREAD DIAMETER1.000 INCHES IN
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.450 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH14
FASTENER LENGTH3.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
7661Interchangeable
interchangeable cross-reference
interchangeable
48638Interchangeable
interchangeable cross-reference
interchangeable
18324Interchangeable
interchangeable cross-reference
interchangeable
504607-1Interchangeable
interchangeable cross-reference
interchangeable
20-76058-1Interchangeable
interchangeable cross-reference
interchangeable
BT221FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XA-766-12?
XA-766-12 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace XA-766-12?
There are 14 known substitutes for XA-766-12: 7661, 48638, 18324 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XA-766-12?
XA-766-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-127-1024. 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