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Technical Data Sheet
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AS3123-08 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS3123-08: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-053-3813, 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
AS3123-08
NSN: 5340-01-053-3813
FSC: 5340 — Hardware, Commercial
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
special_featuresALUM. ALLOY 2024-T4,QQ-A-225/6;ANODIZED,MIL-A-8625 TY 2;S-5002;NOM HOLE SIZE 0.343 IN.;PLUG 0.300/0.314 IN. LG;0.286 IN. DIA TAPERED PIN HOLE;PIN 2407SA208-2,PIN NOT INCLUDED IN
NSN5340-01-053-3813
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3123-08 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESALUM. ALLOY 2024-T4,QQ-A-225/6;ANODIZED,MIL-A-8625 TY 2;S-5002;NOM HOLE SIZE 0.343 IN.;PLUG 0.300/0.314 IN. LG;0.286 IN. DIA TAPERED PIN HOLE;PIN 2407SA208-2,PIN NOT INCLUDED IN
SUBSTITUTES & CROSS-REFERENCES 4
SAE-AS3123Reference document
Same NSN cross-reference
Reference document — Secondary reference
J108P56ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2407SA08-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
PLGA3435010AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS3123-08?
AS3123-08 is a PLUG,EXPANSION.
What parts can replace AS3123-08?
There are 4 known substitutes for AS3123-08: SAE-AS3123, J108P56A, 2407SA08-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3123-08?
AS3123-08 is cataloged in the U.S. Government catalog under NSN 5340-01-053-3813. This indicates validated use in U.S. government and defense supply chains.
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