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74 687 — DIAPHRAGM,LOUDSPEAKER DRIVER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

74 687: DIAPHRAGM,LOUDSPEAKER DRIVER.

The DIAPHRAGM,LOUDSPEAKER DRIVER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, duty_cycle: CONTINUOUS, head_style: FLAT CHAMFER, voice_coil: NOT INCLUDED, head_height: 0.063 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-206-5131, 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
74 687
NSN: 5305-00-206-5131
NIINs: 002065131, 003241979, 008506469, 010509551, 015617936
FSC: 5305 — Screws
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
duty_cycleCONTINUOUS
head_styleFLAT CHAMFER
voice_coilNOT INCLUDED
head_height0.063 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
thread_class2A A
winding_typeSHUNT WOUND
head_diameter0.312 INCHES NOMINAL IN
overall_width3.312 INCHES IN
thread_length0.500 INCHES MINIMUM IN
cooling_methodNONVENTILATED
NSN5305-00-206-5131
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 74 687 · 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: 0.063 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
FEATURES PROVIDED: CASEHARDENED
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.063 INCHES NOMINAL IN
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
FASTENER LENGTH0.625 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
FEATURES PROVIDEDCASEHARDENED
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74 687?
74 687 is a DIAPHRAGM,LOUDSPEAKER DRIVER.
What is the NSN for 74 687?
74 687 is cataloged in the U.S. Government catalog under NSN 5305-00-206-5131. This indicates validated use in U.S. government and defense supply chains.
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