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4857 — CYLINDER HEAD,COMPRESSOR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4857: CYLINDER HEAD,COMPRESSOR.

The CYLINDER HEAD,COMPRESSOR is a the manufacturer industrial component. Key specifications include material: STEEL, overall_height: 0.810 INCHES NOMINAL IN, shank_diameter: 0.640 INCHES NOMINAL IN, end_item_identification: F100-PW-100 ENG JFC-110 BACKUP FUEL CONTROL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-569-3716, 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
4857
NSN: 5340-00-569-3716
NIINs: 005693716, 010264897, 010730377, 011530590, 014985041
FSC: 5340 — Hardware, Commercial
CAGE: 19220 — EASTERN CO DIV EBERHARD MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL
overall_height0.810 INCHES NOMINAL IN
shank_diameter0.640 INCHES NOMINAL IN
end_item_identificationF100-PW-100 ENG JFC-110 BACKUP FUEL CONTROL
NSN5340-00-569-3716
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4857 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
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL LENGTH4.500 INCHES NOMINAL IN
OVERALL WIDTH3.500 INCHES NOMINAL IN
SPECIAL FEATURES2-POINT LOCK
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
8196564Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4857?
4857 is a CYLINDER HEAD,COMPRESSOR.
What parts can replace 4857?
There is 1 known substitute for 4857: 8196564. Substitute compatibility should be verified for your specific system.
What is the NSN for 4857?
4857 is cataloged in the U.S. Government catalog under NSN 5340-00-569-3716. This indicates validated use in U.S. government and defense supply chains.
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