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 SILICONE CLASS Q, temp_rating: -70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 50.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.181 INCHES MINIMUM AND 1.217 INCHES MAXIMUM IN, center_hole_diameter: 0.921 INCHES NOMINAL IN, cross-sectional_height: 0.139 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 5331-01-218-8845, 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
30031-1 PC 55
NSN:5331-01-218-8845 FSC:5331 — O-RING CAGE:16658 — BIACH INDUSTRIES, INC. (USA)
SPECIFICATIONS
material
RUBBER SILICONE CLASS Q
temp_rating
-70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating
50.0 SHORE DUROMETER A NOMINAL
outside_diameter
1.181 INCHES MINIMUM AND 1.217 INCHES MAXIMUM IN
center_hole_diameter
0.921 INCHES NOMINAL IN
cross-sectional_height
0.139 INCHES NOMINAL IN
criticality_code_justification
ZZZY
reference_number_differentiating_characteristics
AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
NSN
5331-01-218-8845
COMPONENT DIAGRAM
KEY FEATURES
•
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
CENTER HOLE DIAMETER: 0.921 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE CLASS Q
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
•
TEMP RATING: -70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 1.181 INCHES MINIMUM AND 1.217 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING
50.0 SHORE DUROMETER A NOMINAL
CRITICALITY CODE JUSTIFICATION
ZZZY
CENTER HOLE DIAMETER
0.921 INCHES NOMINAL IN
MATERIAL
RUBBER SILICONE CLASS Q
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
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FREQUENTLY ASKED QUESTIONS
What is 30031-1 PC 55?
30031-1 PC 55 is a O-RING.
What parts can replace 30031-1 PC 55?
There are 19 known substitutes for 30031-1 PC 55: 331, 2213, N-YGN-34 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30031-1 PC 55?
30031-1 PC 55 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-218-8845. This indicates validated use in U.S. government and defense supply chains.
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