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N1276 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

ADAPTER,STRAIGHT,FLANGE TO HOSE. Key specifications include material: COPPER ALLOY OVERALL, flange_shape: ROUND WITH HOLES FIRST END, connection_type: THREADED EXTERNAL HOSE SECOND END, connection_style: PLAIN (HOSE) SECOND END, nominal_thickness: 0.500 INCHES FIRST END IN, bolt_hole_quantity: 8 FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-196-5339, 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
N1276
NSN: 5330-00-196-5339
FSC: 5330
CAGE: 21226 — PRINCETON TOOL INC DIV PARAGON PRECISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_shapeROUND WITH HOLES FIRST END
connection_typeTHREADED EXTERNAL HOSE SECOND END
connection_stylePLAIN (HOSE) SECOND END
nominal_thickness0.500 INCHES FIRST END IN
bolt_hole_quantity8 FIRST END
flange_face_designPLAIN FIRST END
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
nominal_thread_size2.500 INCHES SECOND END IN
center_hole_diameter4.710 INCHES MINIMUM AND 4.740 INCHES MAXIMUM IN
fsc_application_dataFIRE FIGHTING EQUIPMENT
cross-sectional_height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
NSN5330-00-196-5339
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N1276 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
•
CENTER HOLE DIAMETER: 4.710 INCHES MINIMUM AND 4.740 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER4.710 INCHES MINIMUM AND 4.740 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
12215Interchangeable
interchangeable cross-reference
interchangeable
2012-T 15Interchangeable
interchangeable cross-reference
interchangeable
503-S 15Interchangeable
interchangeable cross-reference
interchangeable
B104ANDB176Interchangeable
interchangeable cross-reference
interchangeable
N1276Interchangeable
interchangeable cross-reference
interchangeable
MILF20042Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N1276?
N1276 is a ADAPTER,STRAIGHT,FLANGE TO HOSE.
What parts can replace N1276?
There are 25 known substitutes for N1276: 12215, 2012-T 15, 503-S 15 and 22 more. Substitute compatibility should be verified for your specific system.
Is N1276 still available?
N1276 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026