55641 — DISK DRIVE UNIT

✓ Government record, cited

— · STORAGE_HDD · 3.5_SATA_HDD

PRODUCT OVERVIEW

55641: DISK DRIVE UNIT.

The DISK DRIVE UNIT is a the manufacturer hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include material: STEEL, end_style: SHORT TWISTED HOOK BOTH ENDS, design_type: FRICTION, hook_radius: 0.034 INCHES NOMINAL BOTH ENDS IN, load_rating: 0.040 KILOGRAMS MINIMUM AND 0.065 KILOGRAMS MAXIMUM KG, coil_quantity: 17-3/4. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-523-8661, 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

STORAGE_HDD→ 3.5_SATA_HDD→ 55641

NSN: 5360-00-523-8661
NIINs: 005238661, 006303099, 015339315
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 82423 — KLEINSCHMIDT INC (USA)

SPECIFICATIONS

material	STEEL
end_style	SHORT TWISTED HOOK BOTH ENDS
design_type	FRICTION
hook_radius	0.034 INCHES NOMINAL BOTH ENDS IN
load_rating	0.040 KILOGRAMS MINIMUM AND 0.065 KILOGRAMS MAXIMUM KG
coil_quantity	17-3/4
inside_diameter	0.068 INCHES NOMINAL IN
overall_diameter	3.310 INCHES NOMINAL IN
special_features	FURNISHED W/BRASS CAMASSEMBLY AND A NO. 35 SASHCHAIN APPROX 4.000 IN LG IN
style_designator	CYLINDRICAL
features_provided	GASKET AND SHOULDER
surface_treatment	ZINC
NSN	5360-00-523-8661

COMPONENT DIAGRAM

KEY FEATURES

•

SPRING FREE OUTSIDE DIAMETER: 0.084 INCHES NOMINAL IN

•

LOAD RATING: 0.040 KILOGRAMS MINIMUM AND 0.065 KILOGRAMS MAXIMUM KG

•

END STYLE: SHORT TWISTED HOOK BOTH ENDS

•

DESIGN TYPE: CLOSED

•

STYLE DESIGNATOR: CYLINDRICAL

•

SPRING FREE LENGTH: 0.326 INCHES NOMINAL IN

•

INSIDE DIAMETER: 0.068 INCHES NOMINAL IN

•

SPRING LENGTH UNDER LOAD: 0.380 INCHES NOMINAL IN

TYPICAL APPLICATIONS

Enterprise storage arrays and SANs
Direct-attached storage (DAS) expansion
Database tier storage (OLTP, OLAP)
Virtual machine datastore expansion
Backup-to-disk and disaster recovery targets
Content delivery and media streaming storage

TECHNICAL CHARACTERISTICS

SPRING FREE OUTSIDE DIAMETER	0.084 INCHES NOMINAL IN
LOAD RATING	0.040 KILOGRAMS MINIMUM AND 0.065 KILOGRAMS MAXIMUM KG
END STYLE	SHORT TWISTED HOOK BOTH ENDS
DESIGN TYPE	CLOSED
STYLE DESIGNATOR	CYLINDRICAL
SPRING FREE LENGTH	0.326 INCHES NOMINAL IN
INSIDE DIAMETER	0.068 INCHES NOMINAL IN
SPRING LENGTH UNDER LOAD	0.380 INCHES NOMINAL IN
COIL QUANTITY	17-3/4
COIL HELIX DIRECTION	RIGHT-HAND OR LEFT-HAND

SUBSTITUTES & CROSS-REFERENCES 1

SMB187695Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 55641?

55641 is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).

What parts can replace 55641?

There is 1 known substitute for 55641: SMB187695. Substitute compatibility should be verified for your specific system.

What is the NSN for 55641?

55641 is cataloged in the U.S. Government catalog under NSN 5360-00-523-8661. This indicates validated use in U.S. government and defense supply chains.

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55641 — DISK DRIVE UNIT

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