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Technical Data Sheet
PartsTable / COMPONENT / 903900K1
903900K1 ✓ 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: 0.106 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: 0.313 INCHES NOMINAL IN, screw_material: STEEL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-151-2948, 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
903900K1
NSN: 5305-00-151-2948
FSC: 5305
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.313 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length0.313 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch32
NSN5305-00-151-2948
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 903900K1 · 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: SLOT
•
THREAD CLASS: 2A A
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 32
•
HEAD HEIGHT: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 4S STYLE
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32
HEAD HEIGHT0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
HEAD DIAMETER0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 4S STYLE
HEAD STYLEFILLISTER
FASTENER LENGTH0.313 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
870888Interchangeable
interchangeable cross-reference
interchangeable
870377Interchangeable
interchangeable cross-reference
interchangeable
7803Interchangeable
interchangeable cross-reference
interchangeable
A7803Interchangeable
interchangeable cross-reference
interchangeable
24752Interchangeable
interchangeable cross-reference
interchangeable
L28-40REDInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 903900K1?
903900K1 is a SCREW,MACHINE.
What parts can replace 903900K1?
There are 20 known substitutes for 903900K1: 870888, 870377, 7803 and 17 more. Substitute compatibility should be verified for your specific system.
Is 903900K1 still available?
903900K1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026