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ST7M349-20 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ST7M349-20: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, seal_width: 0.380 INCHES NOMINAL IN, temp_rating: -80.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF, construction: ONE-PIECE, housing_bore_diameter: 2.00 INCHES NOMINAL IN, accommodated_shaft_diameter: 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-723-7232, 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
ST7M349-20
NSN: 5330-01-723-7232
FSC: 5330 — Packing and Gasket Materials
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
seal_width0.380 INCHES NOMINAL IN
temp_rating-80.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
constructionONE-PIECE
housing_bore_diameter2.00 INCHES NOMINAL IN
accommodated_shaft_diameter1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
material_document_and_classificationZZ-R-765 OR A-A-59588 CLASS 3,GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-723-7232
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST7M349-20 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
•
TEMP RATING: -80.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.380 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.00 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ZZ-R-765 OR A-A-59588 CLASS 3,GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
ACCOMMODATED SHAFT DIAMETER: 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
•
CONSTRUCTION: ONE-PIECE
TECHNICAL CHARACTERISTICS
TEMP RATING-80.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
SEAL WIDTH0.380 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.00 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765 OR A-A-59588 CLASS 3,GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
ACCOMMODATED SHAFT DIAMETER1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q OVERALL
CONSTRUCTIONONE-PIECE
SUBSTITUTES & CROSS-REFERENCES 1
ST7M349Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST7M349-20?
ST7M349-20 is a SEAL,PLAIN.
What parts can replace ST7M349-20?
There is 1 known substitute for ST7M349-20: ST7M349. Substitute compatibility should be verified for your specific system.
What is the NSN for ST7M349-20?
ST7M349-20 is cataloged in the U.S. Government catalog under NSN 5330-01-723-7232. This indicates validated use in U.S. government and defense supply chains.
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