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Technical Data Sheet
PartsTable / COMPONENT / 891861
891861 ✓ 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: STEEL COMP 303SE OVERALL, head_style: HEADLESS (SETSCREW), point_style: HALF DOG, point_length: 0.124 INCHES NOMINAL IN, thread_class: 3A A, point_diameter: 0.334 INCHES MINIMUM AND 0.344 INCHES MAXIMUM 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 5305-01-464-3860, 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
891861
NSN: 5305-01-464-3860
FSC: 5305
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL COMP 303SE OVERALL
head_styleHEADLESS (SETSCREW)
point_styleHALF DOG
point_length0.124 INCHES NOMINAL IN
thread_class3A A
point_diameter0.334 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
fastener_length0.562 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.500 INCHES IN
NSN5305-01-464-3860
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 891861 · 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
•
INTERNAL DRIVE STYLE: HEXAGON
•
POINT DIAMETER: 0.334 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
•
POINT STYLE: HALF DOG
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLEHEXAGON
POINT DIAMETER0.334 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
POINT STYLEHALF DOG
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNF
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
SURFACE TREATMENTPASSIVATE OVERALL
WIDTH ACROSS FLATS0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
AN565A8H12Interchangeable
interchangeable cross-reference
interchangeable
NASM565Interchangeable
interchangeable cross-reference
interchangeable
FF-S-200Interchangeable
interchangeable cross-reference
interchangeable
AN565FC8H5Interchangeable
interchangeable cross-reference
interchangeable
AN565E820H16Interchangeable
interchangeable cross-reference
interchangeable
AN565DC4H2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 891861?
891861 is a SETSCREW.
What parts can replace 891861?
There are 16 known substitutes for 891861: AN565A8H12, NASM565, FF-S-200 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 891861?
891861 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-464-3860. 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