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PartsTable / COMPONENT / 633D7657 PIECE 58
633D7657 PIECE 58 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The HEAD,SAFETY,PRESSURE RELIEF is a the manufacturer industrial component. Key specifications include head_material: COPPER ALLOY, end_item_identification: AQUA-CHEM MODEL S2100-FL-5 DISTILLER, EVAPORATOR APPLICATION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-197-4958, 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
633D7657 PIECE 58
NSN: 4820-01-197-4958
FSC: 4820
CAGE: 09647 — AQUA-CHEM, INC. (USA)
SPECIFICATIONS
head_materialCOPPER ALLOY
end_item_identificationAQUA-CHEM MODEL S2100-FL-5 DISTILLER, EVAPORATOR APPLICATION
NSN4820-01-197-4958
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 633D7657 PIECE 58 · 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
•
HEAD MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
HEAD MATERIALCOPPER ALLOY
END ITEM IDENTIFICATIONAQUA-CHEM MODEL S2100-FL-5 DISTILLER, EVAPORATOR APPLICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
048-00242-004Interchangeable
interchangeable cross-reference
interchangeable
633D7657 PIECE 33Interchangeable
interchangeable cross-reference
interchangeable
48-246Interchangeable
interchangeable cross-reference
interchangeable
633D7657 PIECE 23Interchangeable
interchangeable cross-reference
interchangeable
72C32Interchangeable
interchangeable cross-reference
interchangeable
633-D7657-000 PIECE 23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 633D7657 PIECE 58?
633D7657 PIECE 58 is a HEAD,SAFETY,PRESSURE RELIEF.
What parts can replace 633D7657 PIECE 58?
There are 14 known substitutes for 633D7657 PIECE 58: 048-00242-004, 633D7657 PIECE 33, 48-246 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 633D7657 PIECE 58?
633D7657 PIECE 58 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-197-4958. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026