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PartsTable / COMPONENT / 640001P21
640001P21 ✓ 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 CLIP,SPRING TENSION is a the manufacturer industrial component. Key specifications include width: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, length: 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN, material: COPPER ALLOY OVERALL, hole_diameter: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, overall_height: 0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-883-6387, 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
640001P21
NSN: 5340-00-883-6387
FSC: 5340
CAGE: 94117 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DBA BAE SYSTEMS (USA)
SPECIFICATIONS
width0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
length0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
materialCOPPER ALLOY OVERALL
hole_diameter0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
overall_height0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.016 INCHES NOMINAL IN
loop/holding_dimension0.312 INCHES NOMINAL IN
distance_from_loop_center_to_end0.200 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
NSN5340-00-883-6387
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 640001P21 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
•
WIDTH: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
LOOP/HOLDING DIMENSION: 0.312 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
LENGTH: 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
•
DISTANCE FROM LOOP CENTER TO END: 0.200 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.016 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
LOOP/HOLDING DIMENSION0.312 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
LENGTH0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
DISTANCE FROM LOOP CENTER TO END0.200 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
MATERIAL THICKNESS0.016 INCHES NOMINAL IN
OVERALL HEIGHT0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
L01018Interchangeable
interchangeable cross-reference
interchangeable
26-221Interchangeable
interchangeable cross-reference
interchangeable
62-76Interchangeable
interchangeable cross-reference
interchangeable
50636Interchangeable
interchangeable cross-reference
interchangeable
547823Interchangeable
interchangeable cross-reference
interchangeable
202-26402-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 640001P21?
640001P21 is a CLIP,SPRING TENSION.
What parts can replace 640001P21?
There are 15 known substitutes for 640001P21: L01018, 26-221, 62-76 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 640001P21?
640001P21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-883-6387. 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