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028-07891B — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

028-07891B: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: COTTON AND RUBBER SYNTHETIC OVERALL, overall_width: 11.625 INCHES NOMINAL IN, aperture_width: 9.625 INCHES NOMINAL IN, overall_length: 31.250 INCHES NOMINAL IN, aperture_length: 29.250 INCHES NOMINAL IN, style_designator: NON-CIRCULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-938-1576, 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
028-07891B
NSN: 5330-00-938-1576
FSC: 5330 — Packing and Gasket Materials
CAGE: 66935 — JOHNSON CONTROLS NAVY SYSTEMS, LLC (USA)
SPECIFICATIONS
materialCOTTON AND RUBBER SYNTHETIC OVERALL
overall_width11.625 INCHES NOMINAL IN
aperture_width9.625 INCHES NOMINAL IN
overall_length31.250 INCHES NOMINAL IN
aperture_length29.250 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
fsc_application_dataHEAT EXCHANGER,REFRIGERATION
inside_corner_radius0.125 INCHES NOMINAL IN
outside_corner_radius1.000 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleCLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL
NSN5330-00-938-1576
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 028-07891B MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FSC APPLICATION DATA: HEAT EXCHANGER,REFRIGERATION
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: CLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL
•
APERTURE WIDTH: 9.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAHEAT EXCHANGER,REFRIGERATION
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.125 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH31.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL
OVERALL WIDTH11.625 INCHES NOMINAL IN
APERTURE WIDTH9.625 INCHES NOMINAL IN
APERTURE LENGTH29.250 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS1.000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
067-84240BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 028-07891B?
028-07891B is a GASKET.
What parts can replace 028-07891B?
There is 1 known substitute for 028-07891B: 067-84240B. Substitute compatibility should be verified for your specific system.
What is the NSN for 028-07891B?
028-07891B is cataloged in the U.S. Government catalog under NSN 5330-00-938-1576. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.