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10078-F-18ITEM321I — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

10078-F-18ITEM321I: O-RING.

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, peripheral_diameter: 1.262 INCHES NOMINAL IN, center_hole_diameter: 0.978 INCHES MINIMUM AND 0.990 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 U.S.

Government catalog under NSN 5331-01-164-6843, 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
10078-F-18ITEM321I
NSN: 5331-01-164-6843
FSC: 5331 — O-ring
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
peripheral_diameter1.262 INCHES NOMINAL IN
center_hole_diameter0.978 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5331-01-164-6843
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10078-F-18ITEM321I 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
PERIPHERAL DIAMETER: 1.262 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.978 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZY
ELONGATION PERCENTAGE160 MAXIMUM
PERIPHERAL DIAMETER1.262 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.978 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SUBSTITUTES & CROSS-REFERENCES 7
C-7538/2832PC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS28775-214Reference document
Same NSN cross-reference
Reference document — Identification reference
2640-622PC17Reference document
Same NSN cross-reference
Reference document — Secondary reference
01-435-0212-5PC96Reference document
Same NSN cross-reference
Reference document — Secondary reference
01-435-0146-5PC96Reference document
Same NSN cross-reference
Reference document — Secondary reference
230079104Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10078-F-18ITEM321I?
10078-F-18ITEM321I is a O-RING.
What parts can replace 10078-F-18ITEM321I?
There are 7 known substitutes for 10078-F-18ITEM321I: C-7538/2832PC18, MS28775-214, 2640-622PC17 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10078-F-18ITEM321I?
10078-F-18ITEM321I is cataloged in the U.S. Government catalog under NSN 5331-01-164-6843. This indicates validated use in U.S. government and defense supply chains.
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