PartsTable
Technical Data Sheet
PartsTable / COMPONENT / C2037-21
C2037-21 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.204 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024 BAND, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.051 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 5340-01-070-2344, 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
C2037-21
NSN: 5340-01-070-2344
FSC: 5340
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024 BAND
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.051 INCHES NOMINAL IN
loop_inside_diameter1.298 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-250/5,ALCLAD T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end1.290 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole1.057 INCHES MINIMUM AND 1.087 INCHES MAXIMUM IN
NSN5340-01-070-2344
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C2037-21 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 DOCUMENT AND CLASSIFICATION: QQ-A-250/5,ALCLAD T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL: ALUMINUM ALLOY 2024 BAND
•
DIAMETER: 0.204 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.290 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 1.057 INCHES MINIMUM AND 1.087 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5,ALCLAD T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
STYLE DESIGNATORSINGLE LOOP
MATERIALALUMINUM ALLOY 2024 BAND
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE CUSHION
DIAMETER0.204 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.290 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE1.057 INCHES MINIMUM AND 1.087 INCHES MAXIMUM IN
MATERIAL THICKNESS0.051 INCHES NOMINAL IN
LOOP INSIDE DIAMETER1.298 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
6002-135Interchangeable
interchangeable cross-reference
interchangeable
38521Interchangeable
interchangeable cross-reference
interchangeable
99138521Interchangeable
interchangeable cross-reference
interchangeable
4330PL0645105Interchangeable
interchangeable cross-reference
interchangeable
11793Interchangeable
interchangeable cross-reference
interchangeable
3852Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy C2037-21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is C2037-21?
C2037-21 is a CLAMP,LOOP.
What parts can replace C2037-21?
There are 11 known substitutes for C2037-21: 6002-135, 38521, 99138521 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C2037-21?
C2037-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-070-2344. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — C2037-21

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026