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PartsTable / COMPONENT / 426887
426887 ✓ 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 head_style: FILLISTER, head_height: 0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.500 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-042-6887, 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
426887
NSN: 5305-00-042-6887
FSC: 5305
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.500 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.562 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-042-6887
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 426887 · 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
•
FASTENER LENGTH: 0.562 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: FILLISTER
•
SCREW MATERIAL: STEEL CORROSION RESISTING
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH0.562 INCHES NOMINAL IN
HEAD DIAMETER0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEFILLISTER
SCREW MATERIALSTEEL CORROSION RESISTING
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD DIRECTIONRIGHT-HAND
HEAD HEIGHT0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
THREAD LENGTH0.500 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
FF-S-92B TY I ST 4SInterchangeable
interchangeable cross-reference
interchangeable
8553187-044Interchangeable
interchangeable cross-reference
interchangeable
100890Interchangeable
interchangeable cross-reference
interchangeable
NK500-8-24Interchangeable
interchangeable cross-reference
interchangeable
225416Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 426887?
426887 is a SCREW,MACHINE.
What parts can replace 426887?
There are 5 known substitutes for 426887: FF-S-92B TY I ST 4S, 8553187-044, 100890 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 426887?
426887 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-042-6887. 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