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4857-00 — CYLINDER HEAD,COMPRESSOR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4857-00: 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. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-026-4897, 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
4857-00
NSN: 4820-01-026-4897
FSC: 4820 — Valves, Nonpowered
CAGE: 08576 — PENTAIR FILTRATION SOLUTIONS, LLC (USA)
SPECIFICATIONS
materialSTEEL
overall_height0.810 INCHES NOMINAL IN
shank_diameter0.640 INCHES NOMINAL IN
NSN4820-01-026-4897
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4857-00 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK DIAMETER: 0.640 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.640 INCHES NOMINAL IN
OVERALL HEIGHT0.810 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
4857Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 4857-00?
4857-00 is a CYLINDER HEAD,COMPRESSOR.
What parts can replace 4857-00?
There is 1 known substitute for 4857-00: 4857. Substitute compatibility should be verified for your specific system.
What is the NSN for 4857-00?
4857-00 is cataloged in the U.S. Government catalog under NSN 4820-01-026-4897. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.