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C311908 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

C311908: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND RUBBER HEEL, seal_width: 0.750 INCHES NOMINAL IN, construction: SOLID, hardness_rating: 77.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT, housing_bore_diameter: 10.120 INCHES MINIMUM AND 10.130 INCHES MAXIMUM IN, accommodated_shaft_diameter: 8.870 INCHES MINIMUM AND 8.880 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-274-1295, 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
C311908
NSN: 5330-01-274-1295
FSC: 5330 — Packing and Gasket Materials
CAGE: 16603 — CONTROL FLOW, INC. DBA WESTECH HEAVY MACHINERY DIVISION DIV WESTECH HEAVY MACHINERY DIVISION (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER HEEL
seal_width0.750 INCHES NOMINAL IN
constructionSOLID
hardness_rating77.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT
housing_bore_diameter10.120 INCHES MINIMUM AND 10.130 INCHES MAXIMUM IN
accommodated_shaft_diameter8.870 INCHES MINIMUM AND 8.880 INCHES MAXIMUM IN
cross-sectional_shape_styleSINGLE LIP
material_document_and_classificationH1 CAGEC 75165 MFR REF ALL MATERIAL RESPONSES HEEL
NSN5330-01-274-1295
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C311908 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
•
SEAL WIDTH: 0.750 INCHES NOMINAL IN
•
HARDNESS RATING: 100.0 SHORE DUROMETER A NOMINAL HEEL
•
HOUSING BORE DIAMETER: 10.120 INCHES MINIMUM AND 10.130 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: H1 CAGEC 75165 MFR REF ALL MATERIAL RESPONSES HEEL
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
ACCOMMODATED SHAFT DIAMETER: 8.870 INCHES MINIMUM AND 8.880 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.750 INCHES NOMINAL IN
HARDNESS RATING100.0 SHORE DUROMETER A NOMINAL HEEL
HARDNESS RATING77.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT
HOUSING BORE DIAMETER10.120 INCHES MINIMUM AND 10.130 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONH1 CAGEC 75165 MFR REF ALL MATERIAL RESPONSES HEEL
MATERIAL DOCUMENT AND CLASSIFICATIONL5 CAGEC 75165 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER8.870 INCHES MINIMUM AND 8.880 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL CORROSION RESISTING SPRING
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
H1-L5 9292 LPDReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C311908?
C311908 is a SEAL,PLAIN.
What parts can replace C311908?
There is 1 known substitute for C311908: H1-L5 9292 LPD. Substitute compatibility should be verified for your specific system.
What is the NSN for C311908?
C311908 is cataloged in the U.S. Government catalog under NSN 5330-01-274-1295. This indicates validated use in U.S. government and defense supply chains.
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