Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, outside_diameter: 4.262 INCHES NOMINAL IN, center_hole_diameter: 3.969 INCHES MINIMUM AND 3.999 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-192-8641, 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
2640-901X6 PIECE 21
NSN:5331-01-192-8641 FSC:5331 — O-RING CAGE:96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating
-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
outside_diameter
4.262 INCHES NOMINAL IN
center_hole_diameter
3.969 INCHES MINIMUM AND 3.999 INCHES MAXIMUM IN
elongation_percentage
160 MAXIMUM
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
criticality_code_justification
ADYT
NSN
5331-01-192-8641
COMPONENT DIAGRAM
KEY FEATURES
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CRITICALITY CODE JUSTIFICATION: ADYT
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.969 INCHES MINIMUM AND 3.999 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
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FREQUENTLY ASKED QUESTIONS
What is 2640-901X6 PIECE 21?
2640-901X6 PIECE 21 is a O-RING.
What parts can replace 2640-901X6 PIECE 21?
There are 6 known substitutes for 2640-901X6 PIECE 21: MS28775-242, ARP568-242, 2-242 N304-75 and 3 more. Substitute compatibility should be verified for your specific system.
Is 2640-901X6 PIECE 21 still available?
2640-901X6 PIECE 21 is currently cancelled.
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