PartsTable
Technical Data Sheet
PartsTable / O-RING / 4400173-0330
4400173-0330 ✓ 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

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL OVERALL, peripheral_diameter: 2.129 INCHES NOMINAL IN, center_hole_diameter: 1.971 INCHES MINIMUM AND 2.007 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-057-3133, 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
4400173-0330
NSN: 5331-01-057-3133
FSC: 5331 — O-RING
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
materialRUBBER OVERALL
hardness_rating90.0 SHORE DUROMETER A NOMINAL OVERALL
peripheral_diameter2.129 INCHES NOMINAL IN
center_hole_diameter1.971 INCHES MINIMUM AND 2.007 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
criticality_code_justificationZZZY
material_document_and_classificationMIL-R-83248/ MIL SPEC ALL MATERIAL RESPONSES OVERALL
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5331-01-057-3133
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4400173-0330 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
•
OUTSIDE DIAMETER: 2.105 INCHES MINIMUM AND 2.153 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.979 INCHES MINIMUM AND 1.999 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.105 INCHES MINIMUM AND 2.153 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.979 INCHES MINIMUM AND 1.999 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
31HCS18PC145Interchangeable
interchangeable cross-reference
interchangeable
MS28775-033Interchangeable
interchangeable cross-reference
interchangeable
AS28775Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS28775Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-033Interchangeable
interchangeable cross-reference
interchangeable
4400173-0330CPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4400173-0330?
4400173-0330 is a O-RING.
What parts can replace 4400173-0330?
There are 13 known substitutes for 4400173-0330: 31HCS18PC145, MS28775-033, AS28775 and 10 more. Substitute compatibility should be verified for your specific system.
Is 4400173-0330 still available?
4400173-0330 is currently cancelled.
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Last verified: July 2026