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8421B — BUSHING,SLEEVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8421B: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC SILICONE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-157-9751, 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
8421B
NSN: 5340-01-157-9751
NIINs: 011579751, 012696380
FSC: 5340 — Hardware, Commercial
CAGE: 50053 — MONITEQ, INC. (USA)
SPECIFICATIONS
materialPLASTIC SILICONE OVERALL
NSN5340-01-157-9751
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8421B 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 FEATURESPROGRAMMABLE WITH BATTERY BACK UP
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
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FREQUENTLY ASKED QUESTIONS
What is 8421B?
8421B is a BUSHING,SLEEVE.
What is the NSN for 8421B?
8421B is cataloged in the U.S. Government catalog under NSN 5340-01-157-9751. This indicates validated use in U.S. government and defense supply chains.
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