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PartsTable / COMPONENT / 57-3038
57-3038 ✓ Verified by PartsTable
Legrand · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

Product Mechanism supplied with rocker plate, to be equipped with support frame and surround plate. Key specifications include material: ALUMINUM OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 3.0 MILLIMETERS NOMINAL MM, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, surface_treatment: CHROMATE OVERALL, body_inside_diameter: 3.5 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-057-3038, 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
57-3038
NSN: 5340-00-057-3038
FSC: 5340
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length3.0 MILLIMETERS NOMINAL MM
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatmentCHROMATE OVERALL
body_inside_diameter3.5 MILLIMETERS NOMINAL MM
body_outside_diameter5.0 MILLIMETERS NOMINAL MM
surface_treatment_document_and_classificationMIL-C-5541, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5340-00-057-3038
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 57-3038 MFR: Legrand ⚠ 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: STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1017 BAND
•
SURFACE TREATMENT: CADMIUM OR ZINC BAND
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.656 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.969 INCHES NOMINAL IN
•
SLOT WIDTH: 0.406 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE LOOP
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1017 BAND
SURFACE TREATMENTCADMIUM OR ZINC BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.656 INCHES NOMINAL IN
MATERIALRUBBER CUSHION
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.969 INCHES NOMINAL IN
SLOT WIDTH0.406 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE LOOP
DIAMETER0.406 INCHES NOMINAL IN
OVERALL WIDTH0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
57-3038Interchangeable
interchangeable cross-reference
interchangeable
34-335Interchangeable
interchangeable cross-reference
interchangeable
5495912-003Interchangeable
interchangeable cross-reference
interchangeable
272.376 174Interchangeable
interchangeable cross-reference
interchangeable
5.73.038Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57-3038?
57-3038 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Legrand.
What parts can replace 57-3038?
There are 5 known substitutes for 57-3038: 57-3038, 34-335, 5495912-003 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 57-3038?
57-3038 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-057-3038. 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