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04-21577 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

04-21577: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 8.8 OVERALL, head_style: FILLISTER, head_height: 1.4 MILLIMETERS MINIMUM AND 1.9 MILLIMETERS MAXIMUM MM, thread_class: 6G G, head_diameter: 14.8 MILLIMETERS MINIMUM AND 15.3 MILLIMETERS MAXIMUM MM, thread_length: 24.5 MILLIMETERS MINIMUM AND 27.5 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-599-3175, 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
04-21577
NSN: 5305-01-599-3175
FSC: 5305 — Screws
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 8.8 OVERALL
head_styleFILLISTER
head_height1.4 MILLIMETERS MINIMUM AND 1.9 MILLIMETERS MAXIMUM MM
thread_class6G G
head_diameter14.8 MILLIMETERS MINIMUM AND 15.3 MILLIMETERS MAXIMUM MM
thread_length24.5 MILLIMETERS MINIMUM AND 27.5 MILLIMETERS MAXIMUM MM
shoulder_shapeRIBBED FIRST SHOULDER
fastener_length64.2 MILLIMETERS MINIMUM AND 65.8 MILLIMETERS MAXIMUM MM
shoulder_length5.2 MILLIMETERS MINIMUM AND 6.8 MILLIMETERS MAXIMUM FIRST SHOULDER MM
thread_directionRIGHT-HAND
shoulder_diameter10.7 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM FIRST SHOULDER MM
surface_treatmentOXIDE OVERALL
NSN5305-01-599-3175
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 04-21577 · 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: 1.4 MILLIMETERS MINIMUM AND 1.9 MILLIMETERS MAXIMUM MM
•
FASTENER LENGTH: 64.2 MILLIMETERS MINIMUM AND 65.8 MILLIMETERS MAXIMUM MM
•
SHOULDER LENGTH: 5.2 MILLIMETERS MINIMUM AND 6.8 MILLIMETERS MAXIMUM FIRST SHOULDER MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924D, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 10.7 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM FIRST SHOULDER MM
•
THREAD PITCH IN MILLIMETERS: 1.5
•
THREAD LENGTH: 24.5 MILLIMETERS MINIMUM AND 27.5 MILLIMETERS MAXIMUM MM
•
SHOULDER SHAPE: RIBBED FIRST SHOULDER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT1.4 MILLIMETERS MINIMUM AND 1.9 MILLIMETERS MAXIMUM MM
FASTENER LENGTH64.2 MILLIMETERS MINIMUM AND 65.8 MILLIMETERS MAXIMUM MM
SHOULDER LENGTH5.2 MILLIMETERS MINIMUM AND 6.8 MILLIMETERS MAXIMUM FIRST SHOULDER MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924D, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER10.7 MILLIMETERS MINIMUM AND 10.9 MILLIMETERS MAXIMUM FIRST SHOULDER MM
THREAD PITCH IN MILLIMETERS1.5
THREAD LENGTH24.5 MILLIMETERS MINIMUM AND 27.5 MILLIMETERS MAXIMUM MM
SHOULDER SHAPERIBBED FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J1199, CLASS 8.8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER10.0 MILLIMETERS MM
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 04-21577?
04-21577 is a SCREW,SHOULDER.
What is the NSN for 04-21577?
04-21577 is cataloged in the U.S. Government catalog under NSN 5305-01-599-3175. This indicates validated use in U.S. government and defense supply chains.
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