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Technical Data Sheet
PartsTable / COMPONENT / C2037-4
C2037-4 ✓ 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 FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include diameter: 0.204 INCHES NOMINAL IN, material: COTTON AND PAPER FILTERING MEDIUM, design_type: NONREUSABLE, body_diameter: 3.375 INCHES NOMINAL IN, drop_pressure: ERR-060, overall_width: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-829-2643, 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
C2037-4
NSN: 5340-00-829-2643
FSC: 5340
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialCOTTON AND PAPER FILTERING MEDIUM
design_typeNONREUSABLE
body_diameter3.375 INCHES NOMINAL IN
drop_pressureERR-060
overall_width0.375 INCHES NOMINAL IN
flow_directionINSIDE OUT
style_designatorCYLINDRICAL W/ CONTAINER (RIGID)
tongue_hole_typeROUND, UNTHREADED
material_thickness0.032 INCHES NOMINAL IN
body_overall_length20.000 INCHES NOMINAL IN
body_inside_diameter1.325 INCHES NOMINAL IN
NSN5340-00-829-2643
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C2037-4 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 THICKNESS: 0.032 INCHES NOMINAL IN
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL: ALUMINUM ALLOY 2024 BAND
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-362 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.705 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
TONGUE HOLE TYPEROUND, UNTHREADED
MATERIALALUMINUM ALLOY 2024 BAND
STYLE DESIGNATORSINGLE LOOP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-362 FED SPEC SINGLE MATERIAL RESPONSE BAND
MATERIALPLASTIC CUSHION
OVERALL WIDTH0.375 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.705 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.517 INCHES NOMINAL IN
DIAMETER0.204 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
1794-031Interchangeable
interchangeable cross-reference
interchangeable
1794-131Interchangeable
interchangeable cross-reference
interchangeable
B80492 REF 2 SIZE 5"Interchangeable
interchangeable cross-reference
interchangeable
3854Interchangeable
interchangeable cross-reference
interchangeable
1788-131Interchangeable
interchangeable cross-reference
interchangeable
1788-031Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C2037-4?
C2037-4 is a FILTER ELEMENT,FLUID.
What parts can replace C2037-4?
There are 27 known substitutes for C2037-4: 1794-031, 1794-131, B80492 REF 2 SIZE 5" and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C2037-4?
C2037-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-829-2643. 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