521021 — CAPACITOR,FIXED,MICA DIELECTRIC

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

521021: CAPACITOR,FIXED,MICA DIELECTRIC.

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include material: STEEL COMP 1065 OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, body_style: W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES, body_width: 1.125 INCHES NOMINAL IN, body_height: 0.440 INCHES NOMINAL IN, body_length: 0.730 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5910-00-101-3984, 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

MRO→ MRO_GENERAL→ 521021

NSN: 5910-00-101-3984
NIINs: 001013984, 001014713, 001014720, 003620990, 009077717, 013473445
FSC: 5910 — Capacitors
CAGE: 00000

SPECIFICATIONS

material	STEEL COMP 1065 OVERALL
end_style	SPRING END,SQUARED AND GROUND BOTH ENDS
body_style	W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
body_width	1.125 INCHES NOMINAL IN
body_height	0.440 INCHES NOMINAL IN
body_length	0.730 INCHES NOMINAL IN
load_rating	250.000 POUNDS MINIMUM AND 418.000 POUNDS MAXIMUM LBS
inside_diameter	1.406 INCHES MINIMUM AND 1.469 INCHES MAXIMUM IN
terminal_length	1.120 INCHES MINIMUM IN
style_designator	CYLINDRICAL
surface_treatment	PHOSPHATE OVERALL
spring_free_length	5.300 INCHES NOMINAL IN
NSN	5910-00-101-3984

COMPONENT DIAGRAM

KEY FEATURES

•

BODY STYLE: W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES

•

TOLERANCE RANGE PER SECTION: -10.00 TO 10.00 PERCENT SINGLE SECTION

•

NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC

•

TERMINAL SURFACE TREATMENT: SOLDER

•

TERMINAL LENGTH: 1.120 INCHES MINIMUM IN

•

BODY WIDTH: 0.281 INCHES NOMINAL IN

•

BODY HEIGHT: 0.828 INCHES NOMINAL IN

•

NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 500.0 DC SINGLE SECTION

TYPICAL APPLICATIONS

RAID cache protection during power loss events
Write-back cache enablement for storage controllers
Enterprise server data integrity assurance
Hot-swap battery/capacitor replacement in production

TECHNICAL CHARACTERISTICS

BODY STYLE	W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
TOLERANCE RANGE PER SECTION	-10.00 TO 10.00 PERCENT SINGLE SECTION
NONDERATED OPERATING TEMP	-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
TERMINAL SURFACE TREATMENT	SOLDER
TERMINAL LENGTH	1.120 INCHES MINIMUM IN
BODY WIDTH	0.281 INCHES NOMINAL IN
BODY HEIGHT	0.828 INCHES NOMINAL IN
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION	500.0 DC SINGLE SECTION
SCHEMATIC DIAGRAM DESIGNATOR	NO COMMON OR GROUNDED ELECTRODE(S)
BODY LENGTH	0.828 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 6

140-0020Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

235-1008P33Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

MIL-C-5/4Reference document

Same NSN cross-reference

Reference document — Identification reference

H004-0521021Reference document

Same NSN cross-reference

Reference document — Secondary reference

CM30B182KSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MILC5Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 521021?

521021 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).

What parts can replace 521021?

There are 6 known substitutes for 521021: 140-0020, 235-1008P33, MIL-C-5/4 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 521021?

521021 is cataloged in the U.S. Government catalog under NSN 5910-00-101-3984. This indicates validated use in U.S. government and defense supply chains.

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521021 — CAPACITOR,FIXED,MICA DIELECTRIC

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