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Technical Data Sheet
PartsTable / COMPONENT / MIL-R-8791/1
MIL-R-8791/1 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The MIL-R-8791/1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-020-9513, 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
MIL-R-8791/1
NSN: 5330-01-020-9513
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberMIL-R-8791/1
NSN5330-01-020-9513
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-R-8791/1 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: 0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
JOINT TYPE: SCARF-PERIPHERAL OVERALL
•
DEPARTURE FROM CITED DOCUMENT: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
MATERIAL: PLASTIC TETRAFLUOROETHYLENE OVERALL
•
PERIPHERAL DIAMETER: 0.609 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.505 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CRITICALITY CODE JUSTIFICATIONZZZW
JOINT TYPESCARF-PERIPHERAL OVERALL
DEPARTURE FROM CITED DOCUMENTCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MATERIALPLASTIC TETRAFLUOROETHYLENE OVERALL
PERIPHERAL DIAMETER0.609 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.505 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
CUT TYPEDIAGONAL OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
10119499Interchangeable
interchangeable cross-reference
interchangeable
MS28774-14Interchangeable
interchangeable cross-reference
interchangeable
Z00.N7762061014Interchangeable
interchangeable cross-reference
interchangeable
S1E10063 ITEM 38Interchangeable
Same NIIN cross-reference
interchangeable
V1D10862 ITEM 16Interchangeable
Same NIIN cross-reference
interchangeable
7053290-2Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-8791/1?
MIL-R-8791/1 is a MIL-R-8791/1.
What parts can replace MIL-R-8791/1?
There are 12 known substitutes for MIL-R-8791/1: 10119499, MS28774-14, Z00.N7762061014 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-8791/1?
MIL-R-8791/1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-020-9513. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026