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Technical Data Sheet

AS8791/1-009D4 — RETAINER BACK-UP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS8791/1-009D4: RETAINER BACK-UP.

The RETAINER BACK-UP is a the manufacturer industrial component. Key specifications include special_features: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-530-9795, 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
AS8791/1-009D4
NSN: 5331-01-530-9795
FSC: 5331 — O-ring
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
special_featuresQUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS
criticality_code_justificationFEAT
NSN5331-01-530-9795
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS8791/1-009D4 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESQUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS
SUBSTITUTES & CROSS-REFERENCES 9
MS28774-009D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6397304-12D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
803-6397304-XX-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
G547-0002-6397304-12D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6397304-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS8791/1-009Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS8791/1-009D4?
AS8791/1-009D4 is a RETAINER BACK-UP.
What parts can replace AS8791/1-009D4?
There are 9 known substitutes for AS8791/1-009D4: MS28774-009D4, 6397304-12D4, 803-6397304-XX-12 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS8791/1-009D4?
AS8791/1-009D4 is cataloged in the U.S. Government catalog under NSN 5331-01-530-9795. This indicates validated use in U.S. government and defense supply chains.
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