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79426 — EXTINGUISHER,FIRE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

79426: EXTINGUISHER,FIRE.

The EXTINGUISHER,FIRE is a the manufacturer industrial component. Key specifications include valve_type: PERMANENT SHUT-OFF, design_type: STANDARD, capacity_rating: 15.0 POUNDS MINIMUM LBS, special_features: STANDARD CHARGED HEAD PERMANENT SHUT OFF VALVE SQUEEZE GRIP CONTROL 15 POUNDS LBS, control_device_type: SQUEEZE-GRIP, type/model_designation: SY 1572. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-684-5739, 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
79426
NSN: 5331-00-684-5739
NIINs: 006845739, 015686926
FSC: 5331 — O-ring
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
valve_typePERMANENT SHUT-OFF
design_typeSTANDARD
capacity_rating15.0 POUNDS MINIMUM LBS
special_featuresSTANDARD CHARGED HEAD PERMANENT SHUT OFF VALVE SQUEEZE GRIP CONTROL 15 POUNDS LBS
control_device_typeSQUEEZE-GRIP
type/model_designationSY 1572
end_item_identification4210-01-486-1035
part_name_assigned_by_controlling_agencyEXTINGUISHER, FIRE, CO2, IS
NSN5331-00-684-5739
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 79426 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 HEIGHT: 0.136 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
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MATERIAL DOCUMENT AND CLASSIFICATION: HS163, UNITED AIRCRAFT CORP MFR REF SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.136 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONHS163, UNITED AIRCRAFT CORP MFR REF SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 79426?
79426 is a EXTINGUISHER,FIRE.
What is the NSN for 79426?
79426 is cataloged in the U.S. Government catalog under NSN 5331-00-684-5739. 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.