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, special_features: O.D. 2.750 IN.
NOM; I.D. 2.500 IN. NOM; WIDTH 0.125 IN.
NOM IN, peripheral_diameter: 2.762 INCHES NOMINAL IN, center_hole_diameter: 2.474 INCHES MINIMUM AND 2.494 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-240-5987, 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
4856-D
NSN:5331-01-240-5987 FSC:5331 — O-RING CAGE:87229 — LAURENCE R G CO INC (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating
-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
special_features
O.D. 2.750 IN. NOM; I.D. 2.500 IN. NOM; WIDTH 0.125 IN. NOM IN
peripheral_diameter
2.762 INCHES NOMINAL IN
center_hole_diameter
2.474 INCHES MINIMUM AND 2.494 INCHES MAXIMUM IN
elongation_percentage
160 MAXIMUM
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
departure_from_cited_document
MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
criticality_code_justification
ZZZW
NSN
5331-01-240-5987
COMPONENT DIAGRAM
KEY FEATURES
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 2.474 INCHES MINIMUM AND 2.494 INCHES MAXIMUM IN
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
PERIPHERAL DIAMETER: 2.762 INCHES NOMINAL IN
•
ELONGATION PERCENTAGE: 160 MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CRITICALITY CODE JUSTIFICATION
ZZZW
CROSS-SECTIONAL HEIGHT
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER
2.474 INCHES MINIMUM AND 2.494 INCHES MAXIMUM IN
DEPARTURE FROM CITED DOCUMENT
MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TEMP RATING
-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
PERIPHERAL DIAMETER
2.762 INCHES NOMINAL IN
ELONGATION PERCENTAGE
160 MAXIMUM
SPECIAL FEATURES
O.D. 2.750 IN. NOM; I.D. 2.500 IN. NOM; WIDTH 0.125 IN. NOM IN
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FREQUENTLY ASKED QUESTIONS
What is 4856-D?
4856-D is a O-RING.
What parts can replace 4856-D?
There are 11 known substitutes for 4856-D: C 4072 925 AL, ARP568-230MILP5 516CLB, 230-7377 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4856-D?
4856-D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-240-5987. This indicates validated use in U.S. government and defense supply chains.
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