28697 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited

— · ORING SEAL

PRODUCT OVERVIEW

28697: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: LEATHER SEALING ELEMENT, case_style: SQUARE, seal_width: 0.500 INCHES NOMINAL IN, outside_diameter: 3.756 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 3.751 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-081-9872, 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

28697

NSN: 5330-00-081-9872
NIINs: 000819872, 002949793, 017078008
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)

SPECIFICATIONS

material	LEATHER SEALING ELEMENT
case_style	SQUARE
seal_width	0.500 INCHES NOMINAL IN
outside_diameter	3.756 INCHES NOMINAL IN
surface_treatment	PLASTIC CASE
housing_bore_diameter	3.751 INCHES NOMINAL IN
sealing_element_style	ANGULAR
accommodated_shaft_diameter	2.875 INCHES NOMINAL IN
NSN	5330-00-081-9872

COMPONENT DIAGRAM

KEY FEATURES

•

SEAL WIDTH: 0.500 INCHES NOMINAL IN

•

SEALING ELEMENT STYLE: ANGULAR

•

OUTSIDE DIAMETER: 3.756 INCHES NOMINAL IN

•

HOUSING BORE DIAMETER: 3.751 INCHES NOMINAL IN

•

CASE STYLE: SQUARE

•

ACCOMMODATED SHAFT DIAMETER: 2.875 INCHES NOMINAL IN

•

SURFACE TREATMENT: PLASTIC CASE

•

MATERIAL: STEEL CASE

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

SEAL WIDTH	0.500 INCHES NOMINAL IN
SEALING ELEMENT STYLE	ANGULAR
OUTSIDE DIAMETER	3.756 INCHES NOMINAL IN
HOUSING BORE DIAMETER	3.751 INCHES NOMINAL IN
CASE STYLE	SQUARE
ACCOMMODATED SHAFT DIAMETER	2.875 INCHES NOMINAL IN
SURFACE TREATMENT	PLASTIC CASE
MATERIAL	STEEL CASE
MATERIAL	LEATHER SEALING ELEMENT

SUBSTITUTES & CROSS-REFERENCES 2

24B375W228T8Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

375W228T8Reference 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 28697?

28697 is a CAPACITOR,VARIABLE,AIR DIELECTRI.

What parts can replace 28697?

There are 2 known substitutes for 28697: 24B375W228T8, 375W228T8. Substitute compatibility should be verified for your specific system.

What is the NSN for 28697?

28697 is cataloged in the U.S. Government catalog under NSN 5330-00-081-9872. This indicates validated use in U.S. government and defense supply chains.

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28697 — CAPACITOR,VARIABLE,AIR DIELECTRI

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