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398225 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

398225: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, hole_diameter: 0.046 INCHES NOMINAL IN, thread_length: 0.168 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-188-0641, 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
398225
NSN: 5305-01-188-0641
FSC: 5305 — Screws
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
hole_diameter0.046 INCHES NOMINAL IN
hole_quantity2
thread_length0.168 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length0.230 INCHES NOMINAL IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
special_featuresUNDERCUT 0.062 IN. LONG,0.143 IN. MIN DIA,0.147 IN. MAX DIA IN
thread_directionRIGHT-HAND
NSN5305-01-188-0641
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 398225 · 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: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: NICKEL
•
FASTENER LENGTH: 0.230 INCHES NOMINAL IN
•
THREAD LENGTH: 0.168 INCHES NOMINAL IN
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FILLISTER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTNICKEL
FASTENER LENGTH0.230 INCHES NOMINAL IN
THREAD LENGTH0.168 INCHES NOMINAL IN
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
SPECIAL FEATURESUNDERCUT 0.062 IN. LONG,0.143 IN. MIN DIA,0.147 IN. MAX DIA IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 398225?
398225 is a SCREW,MACHINE.
What is the NSN for 398225?
398225 is cataloged in the U.S. Government catalog under NSN 5305-01-188-0641. This indicates validated use in U.S. government and defense supply chains.
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