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388854 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

388854: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN, screw_material: STEEL COMP 1212, fastener_length: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-174-4280, 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
388854
NSN: 5305-00-174-4280
FSC: 5305 — Screws
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
thread_class2A A
thread_length0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
screw_materialSTEEL COMP 1212
fastener_length0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch32
NSN5305-00-174-4280
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 388854 · 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: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
SCREW MATERIALSTEEL COMP 1212
SUBSTITUTES & CROSS-REFERENCES 2
110750021Reference document
Same NSN cross-reference
Reference document — Secondary reference
P18769Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 388854?
388854 is a SCREW,MACHINE.
What parts can replace 388854?
There are 2 known substitutes for 388854: 110750021, P18769. Substitute compatibility should be verified for your specific system.
What is the NSN for 388854?
388854 is cataloged in the U.S. Government catalog under NSN 5305-00-174-4280. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.