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BP62521 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BP62521: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FILLISTER, head_height: 0.049 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.130 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-546-6866, 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
BP62521
NSN: 5305-00-546-6866
FSC: 5305 — Screws
CAGE: 28528 — ITT INDUSTRIES INC ITT AEROSPACE COMMUNICATIONS DIV EAST (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleFILLISTER
head_height0.049 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.130 INCHES NOMINAL IN
fastener_length0.427 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
first_diameter_from_head0.084 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
NSN5305-00-546-6866
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BP62521 · 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: 0.049 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.427 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.130 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.084 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: FILLISTER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.049 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
FASTENER LENGTH0.427 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.130 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.084 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
68591Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BP62521NISSUE1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BP62521?
BP62521 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace BP62521?
There are 2 known substitutes for BP62521: 68591, BP62521NISSUE1. Substitute compatibility should be verified for your specific system.
What is the NSN for BP62521?
BP62521 is cataloged in the U.S. Government catalog under NSN 5305-00-546-6866. This indicates validated use in U.S. government and defense supply chains.
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