PartsTable
Technical Data Sheet
Download PDF

7820-70-302-1125 — SEAL,NONMETALLIC ROUND SECTION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7820-70-302-1125: SEAL,NONMETALLIC ROUND SECTION.

The SEAL,NONMETALLIC ROUND SECTION is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, special_features: OUTSIDE DIAMETER (NOM) IS 3.750 INCHES IN, style_designator: CIRCULAR, aperture_diameter: 0.875 INCHES NOMINAL IN, cross-sectional_height: 0.094 INCHES NOMINAL IN, end_item_identification: COMBAT RESCUE. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-693-1871, 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
7820-70-302-1125
NSN: 5330-01-693-1871
FSC: 5330 — Packing and Gasket Materials
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
special_featuresOUTSIDE DIAMETER (NOM) IS 3.750 INCHES IN
style_designatorCIRCULAR
aperture_diameter0.875 INCHES NOMINAL IN
cross-sectional_height0.094 INCHES NOMINAL IN
end_item_identificationCOMBAT RESCUE
material_document_and_classificationMIL-PRF-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-693-1871
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7820-70-302-1125 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: 0.094 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-PRF-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
APERTURE DIAMETER: 0.875 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.094 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-PRF-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
APERTURE DIAMETER0.875 INCHES NOMINAL IN
SPECIAL FEATURESOUTSIDE DIAMETER (NOM) IS 3.750 INCHES IN
END ITEM IDENTIFICATIONCOMBAT RESCUE
MATERIALRUBBER SYNTHETIC OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 7820-70-302-1125?
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 7820-70-302-1125?
7820-70-302-1125 is a SEAL,NONMETALLIC ROUND SECTION.
What is the NSN for 7820-70-302-1125?
7820-70-302-1125 is cataloged in the U.S. Government catalog under NSN 5330-01-693-1871. 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 — 7820-70-302-1125

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.