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120520 — SHIELD CAP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

120520: SHIELD CAP.

The SHIELD CAP is a the manufacturer industrial component. Key specifications include special_features: PAC135 40A A, end_item_identification: BURNER CAP. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-189-7640, 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
120520
NSN: 5340-01-189-7640
NIINs: 011897640, 015638167
FSC: 5340 — Hardware, Commercial
CAGE: 11862 — GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT (USA)
SPECIFICATIONS
special_featuresPAC135 40A A
end_item_identificationBURNER CAP
NSN5340-01-189-7640
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 120520 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
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
LOOP INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
LOOP INSIDE DIAMETER0.188 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
179148Reference document
Same NSN cross-reference
Reference document — Secondary reference
CMDX2Reference document
Same NSN cross-reference
Reference document — Secondary reference
5342PL0776156Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 120520?
120520 is a SHIELD CAP.
What parts can replace 120520?
There are 3 known substitutes for 120520: 179148, CMDX2, 5342PL0776156. Substitute compatibility should be verified for your specific system.
What is the NSN for 120520?
120520 is cataloged in the U.S. Government catalog under NSN 5340-01-189-7640. This indicates validated use in U.S. government and defense supply chains.
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