2-021 — CAPACITOR,FIXED,ELECTROLYTIC

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

2-021: CAPACITOR,FIXED,ELECTROLYTIC.

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include outside_diameter: 1.0625 INCHES NOMINAL IN, special_features: EQUIPMENT SOUND MEASURING SET, MODEL BQR-270K, center_hole_diameter: 0.9375 INCHES NOMINAL IN, cross-sectional_height: 0.0625 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: CCP O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-010-0034, 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→ 2-021

NSN: 5305-00-010-0034
NIINs: 000100034, 000169615, 001514540, 001538155, 001875120, 002226420, 002810090, 003898585, 003973114, 004250105, 004266710, 004390355, 004679908, 006033763, 007209765, 007591659, 008361290, 008429864, 009037595, 009454945, 009759795, 010302845, 010674975, 010836401, 010945251, 011129751, 011182021, 011202638, 011459057, 011479795, 012059500, 012198073, 012610720, 012697294, 012880155, 013398021, 013630821, 014907364, 015581127, 015926243, 016906184, 017250734
FSC: 5305 — Screws
CAGE: 1DF03 — ABM EQUIPMENT, LLC (USA)

SPECIFICATIONS

outside_diameter	1.0625 INCHES NOMINAL IN
special_features	EQUIPMENT SOUND MEASURING SET, MODEL BQR-270K
center_hole_diameter	0.9375 INCHES NOMINAL IN
cross-sectional_height	0.0625 INCHES NOMINAL IN
part_name_assigned_by_controlling_agency	CCP O-RING
NSN	5305-00-010-0034

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN

•

FASTENER LENGTH: 3.906 INCHES MINIMUM AND 4.094 INCHES MAXIMUM IN

•

THREAD LENGTH: 1.000 INCHES MINIMUM IN

•

HARDNESS RATING: 100.0 ROCKWELL B MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

•

WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN

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

HEAD HEIGHT	0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
FASTENER LENGTH	3.906 INCHES MINIMUM AND 4.094 INCHES MAXIMUM IN
THREAD LENGTH	1.000 INCHES MINIMUM IN
HARDNESS RATING	100.0 ROCKWELL B MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH	55000 POUNDS PER SQUARE INCH LBS
THREAD CLASS	2A A

SUBSTITUTES & CROSS-REFERENCES 2

MS35290-74Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

100034Reference 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 2-021?

2-021 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).

What parts can replace 2-021?

There are 2 known substitutes for 2-021: MS35290-74, 100034. Substitute compatibility should be verified for your specific system.

What is the NSN for 2-021?

2-021 is cataloged in the U.S. Government catalog under NSN 5305-00-010-0034. This indicates validated use in U.S. government and defense supply chains.

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2-021 — CAPACITOR,FIXED,ELECTROLYTIC

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