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11B4550025 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

11B4550025: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.240 INCHES NOMINAL IN, fastener_length: 1.500 INCHES NOMINAL IN, width_between_flats: 0.375 INCHES NOMINAL IN, internal_drive_style: W/O INTERNAL DRIVE. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-628-8295, 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
11B4550025
NSN: 5305-01-628-8295
FSC: 5305 — Screws
CAGE: 5B5M3 — DEVCOM CHEMICAL BIOLOGICAL CENTER DBA CHEMICAL BIOLOGICAL CENTER DIV U.S. DEPT OF ARMY (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.240 INCHES NOMINAL IN
fastener_length1.500 INCHES NOMINAL IN
width_between_flats0.375 INCHES NOMINAL IN
internal_drive_styleW/O INTERNAL DRIVE
end_item_identification4210016270524
extended_washer_diameter0.520 INCHES NOMINAL IN
nonmachine_nominal_thread_diameter0.250 INCHES IN
part_name_assigned_by_controlling_agencySELF TAPPING SCREW
NSN5305-01-628-8295
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11B4550025 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD HEIGHT: 0.240 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.500 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.520 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
WIDTH BETWEEN FLATS: 0.375 INCHES NOMINAL IN
•
INTERNAL DRIVE STYLE: W/O INTERNAL DRIVE
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD HEIGHT0.240 INCHES NOMINAL IN
FASTENER LENGTH1.500 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.520 INCHES NOMINAL IN
HEAD STYLEHEXAGON EXTENDED WASHER
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL IN
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
PART NAME ASSIGNED BY CONTROLLING AGENCYSELF TAPPING SCREW
END ITEM IDENTIFICATION4210016270524
MATERIALSTEEL COMP 410 OVERALL
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 1
90822A630Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 11B4550025?
11B4550025 is a SCREW,TAPPING.
What parts can replace 11B4550025?
There is 1 known substitute for 11B4550025: 90822A630. Substitute compatibility should be verified for your specific system.
What is the NSN for 11B4550025?
11B4550025 is cataloged in the U.S. Government catalog under NSN 5305-01-628-8295. This indicates validated use in U.S. government and defense supply chains.
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