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H733-4-426 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

H733-4-426: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ, hardness_rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM, center_hole_diameter: 4.511 INCHES MINIMUM AND 4.587 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.264 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, material_document_and_classification: MIL-R-25988, TY 1, CL 1, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-232-0632, 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
H733-4-426
NSN: 5331-00-232-0632
FSC: 5331 — O-ring
CAGE: 07096 — BURKE INDUSTRIES PUROSIL DIV (USA)
SPECIFICATIONS
materialRUBBER FLUOROSILICONE CLASS FQ
hardness_rating55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM
center_hole_diameter4.511 INCHES MINIMUM AND 4.587 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.264 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
material_document_and_classificationMIL-R-25988, TY 1, CL 1, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-00-232-0632
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H733-4-426 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: 0.264 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25988, TY 1, CL 1, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 4.511 INCHES MINIMUM AND 4.587 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.264 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25988, TY 1, CL 1, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER4.511 INCHES MINIMUM AND 4.587 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROSILICONE CLASS FQ
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 9
2-426L946-60Reference document
Same NSN cross-reference
Reference document — Secondary reference
AA-426TH1047Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PRP426-11646Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-426 L449-65Reference document
Same NSN cross-reference
Reference document — Secondary reference
11-426-8450-60Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-426L608-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 H733-4-426?
H733-4-426 is a O-RING.
What parts can replace H733-4-426?
There are 9 known substitutes for H733-4-426: 2-426L946-60, AA-426TH1047, PRP426-11646 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H733-4-426?
H733-4-426 is cataloged in the U.S. Government catalog under NSN 5331-00-232-0632. This indicates validated use in U.S. government and defense supply chains.
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