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Technical Data Sheet
4811B ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include width: 35.750 INCHES MINIMUM AND 36.250 INCHES MAXIMUM IN, material: PAPER LOCATION NOT OTHERWISE SPECIFIED, thickness: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN, fiber_type: PLANT, environmental_protection: GASOLINE AND MILDEW RESISTANT AND OIL RESISTANT AND WATER RESISTANT, nondefinitive_spec/std_data: +3313B PART AND 3 TYPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-138-0370, 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
4811B
NSN: 5330-00-138-0370
FSC: 5330
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
width35.750 INCHES MINIMUM AND 36.250 INCHES MAXIMUM IN
materialPAPER LOCATION NOT OTHERWISE SPECIFIED
thickness0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
fiber_typePLANT
environmental_protectionGASOLINE AND MILDEW RESISTANT AND OIL RESISTANT AND WATER RESISTANT
nondefinitive_spec/std_data+3313B PART AND 3 TYPE
departure_from_cited_designatorAS MOD BY GASOLINE,OIL AND WATER RES
material_document_and_classificationMIL-G-12803,NO. F326128-6 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
NSN5330-00-138-0370
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4811B 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
SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLEMENTARY FEATURESCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
SPECIAL FEATURESSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
MIL-G-12803 TYP E 1 1/32IN THKInterchangeable
interchangeable cross-reference
interchangeable
N-100412 PIECE 74Interchangeable
interchangeable cross-reference
interchangeable
RGR686BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4811B?
4811B is a GASKET.
What parts can replace 4811B?
There are 3 known substitutes for 4811B: MIL-G-12803 TYP E 1 1/32IN THK, N-100412 PIECE 74, RGR686B. Substitute compatibility should be verified for your specific system.
What is the NSN for 4811B?
4811B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-138-0370. This indicates validated use in U.S. government and defense supply chains.
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