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Technical Data Sheet
PartsTable / COMPONENT / 3-57709-7
3-57709-7 ✓ 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 PLATE,STRUCTURAL,AIRCRAFT is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-989-6914, 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
3-57709-7
NSN: 5330-00-989-6914
FSC: 5330
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
special_featuresMATERIAL WILL BE STAINLESS STEEL 316 AND ASBESTOS,SIZE- 2.875 OD AND 2.375 ID AND 0.125 THICK,SPECIFICATION PER MILG21032 TYPE I
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5330-00-989-6914
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-57709-7 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
•
APERTURE DIAMETER: 2.375 INCHES NOMINAL2.375 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
•
OUTSIDE DIAMETER: 2.875 INCHES NOMINAL2.875 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS AND STEEL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER2.375 INCHES NOMINAL2.375 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
OUTSIDE DIAMETER2.875 INCHES NOMINAL2.875 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
MATERIALASBESTOS AND STEEL OVERALL
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
23250PC19Interchangeable
interchangeable cross-reference
interchangeable
MILG21032TYPE1Interchangeable
interchangeable cross-reference
interchangeable
2647-51-97Interchangeable
interchangeable cross-reference
interchangeable
3577-000-091Interchangeable
interchangeable cross-reference
interchangeable
64604ITEM10Interchangeable
interchangeable cross-reference
interchangeable
3577-0-97Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-57709-7?
3-57709-7 is a PLATE,STRUCTURAL,AIRCRAFT.
What parts can replace 3-57709-7?
There are 8 known substitutes for 3-57709-7: 23250PC19, MILG21032TYPE1, 2647-51-97 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-57709-7?
3-57709-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-989-6914. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026