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19813 — DIAPHRAGM AND PLATE

✓ Government record, cited
Jumbo · ORING SEAL
PRODUCT OVERVIEW

19813: DIAPHRAGM AND PLATE.

The DIAPHRAGM AND PLATE is a Jumbo industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, fastener_length: 2.5 INCHES NOMINAL IN, special_features: GRADE 8, features_provided: WASHER, surface_treatment: OIL AND PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-772-7650, 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
19813
NSN: 5330-00-772-7650
NIINs: 007727650, 012819742, 016836816
FSC: 5330 — Packing and Gasket Materials
CAGE: 13841 — TIFFIN PARTS, L.L.C. DIV SUBSIDIARY OF PETTIBONE CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
fastener_length2.5 INCHES NOMINAL IN
special_featuresGRADE 8
features_providedWASHER
surface_treatmentOIL AND PHOSPHATE OVERALL
end_item_identification2541-01-648-8154
nominal_thread_diameter0.500 INCHES IN
thread_quantity_per_inch13
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agencyBOLT,HEX FLANGE
surface_treatment_document_and_classificationASME B18.2.1, SAE J429, ASTM F788 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL
NSN5330-00-772-7650
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 19813 MFR: Jumbo ⚠ 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
SUBSTITUTES & CROSS-REFERENCES 2
983005Reference document
Same NSN cross-reference
Reference document — Secondary reference
9141920Reference 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 19813?
19813 is a DIAPHRAGM AND PLATE manufactured by Jumbo.
What parts can replace 19813?
There are 2 known substitutes for 19813: 983005, 9141920. Substitute compatibility should be verified for your specific system.
What is the NSN for 19813?
19813 is cataloged in the U.S. Government catalog under NSN 5330-00-772-7650. This indicates validated use in U.S. government and defense supply chains.
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