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12273834-1 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12273834-1: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: STEEL CORROSION RESISTING CORE, construction: TWO-PIECETWO-PIECE, aperture_width: 32.560 INCHES NOMINAL32.560 INCHES NOMINAL IN, aperture_length: 24.840 INCHES NOMINAL24.840 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, cross-sectional_width: 1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-104-8940, 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
12273834-1
NSN: 5330-01-104-8940
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING CORE
constructionTWO-PIECETWO-PIECE
aperture_width32.560 INCHES NOMINAL32.560 INCHES NOMINAL IN
aperture_length24.840 INCHES NOMINAL24.840 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
cross-sectional_width1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN
cross-sectional_height1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
end_item_identificationPCCN CMBT85 M1PCCN CMBT85 M1
cross-sectional_thickness0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
cross-sectional_shape_styleP SHAPEP SHAPE
material_document_and_classificationMIL-S-45351B TYPE I MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-01-104-8940
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12273834-1 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
•
CROSS-SECTIONAL THICKNESS: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-45351B TYPE I MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: P SHAPEP SHAPE
•
APERTURE WIDTH: 32.560 INCHES NOMINAL32.560 INCHES NOMINAL IN
•
APERTURE LENGTH: 24.840 INCHES NOMINAL24.840 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-45351B TYPE I MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLEP SHAPEP SHAPE
APERTURE WIDTH32.560 INCHES NOMINAL32.560 INCHES NOMINAL IN
APERTURE LENGTH24.840 INCHES NOMINAL24.840 INCHES NOMINAL IN
SPECIAL FEATURESIRREGULAR SHAPE;SIDES DIFFERENT LENGTHS AND SHAPE;ONE END IS OPEN;COVER CLOTH SHALL BE ARAMID/GLASS WIRE INSERTED CLOTH W/SILICONE RUBBER ON THE INSIDE AND COATED ON THE OUTSIDE W/ALUMINUM PIGMENTED SILICONE COMPOUD;CORE CONSTRUCTED OF INCONNEL ALLOY OR CORROSION RESISTING STAINLESS STEEL OF THE 300 SERIESIRREGULAR SHAPE;SIDES DIFFERENT LENGTHS AND SHAPE;ONE END IS OPEN;COVER CLOTH SHALL BE ARAMID/GLASS WIRE INSERTED CLOTH W/SILICONE RUBBER ON THE INSIDE AND COATED ON THE OUTSIDE W/ALUMINUM PIGMENTED SILICONE COMPOUD;CORE CONSTRUCTED OF INCONNEL ALLOY OR CORROSION RESISTING STAINLESS STEEL OF THE 300 SERIES
END ITEM IDENTIFICATIONPCCN CMBT85 M1PCCN CMBT85 M1
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

No substitute or cross-reference records for this part.

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 12273834-1?
12273834-1 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for 12273834-1?
12273834-1 is cataloged in the U.S. Government catalog under NSN 5330-01-104-8940. 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.