PartsTable
Technical Data Sheet
Download PDF

820-5786921-1 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

820-5786921-1: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-318-3298, 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
820-5786921-1
NSN: 5331-01-318-3298
NIINs: 013183298, 016821521
FSC: 5331 — O-ring
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN5331-01-318-3298
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 820-5786921-1 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
•
CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 8.420 INCHES MINIMUM AND 8.530 INCHES MAXIMUM IN
•
TEST DATA DOCUMENT: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
CENTER HOLE DIAMETER8.420 INCHES MINIMUM AND 8.530 INCHES MAXIMUM IN
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
SUBSTITUTES & CROSS-REFERENCES 4
2-446E515-80Reference document
Same NSN cross-reference
Reference document — Secondary reference
PO0087NRPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LL-HQ6-4991Reference document
Same NSN cross-reference
Reference document — Secondary reference
LO1429Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 820-5786921-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 820-5786921-1?
820-5786921-1 is a O-RING.
What parts can replace 820-5786921-1?
There are 4 known substitutes for 820-5786921-1: 2-446E515-80, PO0087NRP, LL-HQ6-4991 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 820-5786921-1?
820-5786921-1 is cataloged in the U.S. Government catalog under NSN 5331-01-318-3298. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 820-5786921-1