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PWB-0849 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

PWB-0849: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, hardness_rating: 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 4.300 INCHES NOMINAL IN, special_features: 12 0.200 IN. RADIUSES ON A 4.125 IN.

BOLT CIRCLE USED AS ATTACHMENT FEATURE IN, aperture_diameter: 3.630 INCHES NOMINAL IN, cross-sectional_thickness: 0.120 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 5330-01-133-7256, 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
PWB-0849
NSN: 5330-01-133-7256
FSC: 5330 — Packing and Gasket Materials
CAGE: 77221 — PHAOSTRON INSTRUMENT AND ELECTRONIC COMPANY (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
hardness_rating35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter4.300 INCHES NOMINAL IN
special_features12 0.200 IN. RADIUSES ON A 4.125 IN. BOLT CIRCLE USED AS ATTACHMENT FEATURE IN
aperture_diameter3.630 INCHES NOMINAL IN
cross-sectional_thickness0.120 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationZZ-R-765,CL 2B,GR 40 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-133-7256
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PWB-0849 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 THICKNESS: 0.120 INCHES NOMINAL IN
•
HARDNESS RATING: 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ZZ-R-765,CL 2B,GR 40 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 4.300 INCHES NOMINAL IN
•
APERTURE DIAMETER: 3.630 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.120 INCHES NOMINAL IN
HARDNESS RATING35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765,CL 2B,GR 40 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER4.300 INCHES NOMINAL IN
APERTURE DIAMETER3.630 INCHES NOMINAL IN
SPECIAL FEATURES12 0.200 IN. RADIUSES ON A 4.125 IN. BOLT CIRCLE USED AS ATTACHMENT FEATURE IN
MATERIALRUBBER SILICONE CLASS Q OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
4D-2690Reference 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 PWB-0849?
PWB-0849 is a GASKET.
What parts can replace PWB-0849?
There is 1 known substitute for PWB-0849: 4D-2690. Substitute compatibility should be verified for your specific system.
What is the NSN for PWB-0849?
PWB-0849 is cataloged in the U.S. Government catalog under NSN 5330-01-133-7256. This indicates validated use in U.S. government and defense supply chains.
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