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PartsTable / COMPONENT / MDL104A PIECE 1
MDL104A PIECE 1 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 544 OVERALL, material_document_and_classification: ASTM B-139,B ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-276-0905, 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
MDL104A PIECE 1
NSN: 5330-01-276-0905
FSC: 5330
CAGE: 20969 — ESSEX BRASS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 544 OVERALL
material_document_and_classificationASTM B-139,B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-276-0905
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MDL104A PIECE 1 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
•
MATERIAL: COPPER ALLOY 544 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-139,B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 544 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-139,B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
10-4-13Interchangeable
interchangeable cross-reference
interchangeable
DRC88669-1Interchangeable
interchangeable cross-reference
interchangeable
11040710-91Interchangeable
interchangeable cross-reference
interchangeable
256061P3Interchangeable
interchangeable cross-reference
interchangeable
10-544-3Interchangeable
interchangeable cross-reference
interchangeable
506.2500Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MDL104A PIECE 1?
MDL104A PIECE 1 is a RETAINER,PACKING.
What parts can replace MDL104A PIECE 1?
There are 15 known substitutes for MDL104A PIECE 1: 10-4-13, DRC88669-1, 11040710-91 and 12 more. Substitute compatibility should be verified for your specific system.
Is MDL104A PIECE 1 still available?
MDL104A PIECE 1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026