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TF42002 FC — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

TF42002 FC: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, end_item_identification: 2-1/2 INCH IRON GATE VALVE 4820-01-535-8084 IN, material_document_and_classification: ASTM A126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE OVERALL, part_name_assigned_by_controlling_agency: SEAT RING. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-535-8257, 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
TF42002 FC
NSN: 4820-01-535-8257
FSC: 4820 — Valves, Nonpowered
CAGE: 61623 — NIBCO INC CHEMTROL DIV (USA)
SPECIFICATIONS
materialIRON OVERALL
end_item_identification2-1/2 INCH IRON GATE VALVE 4820-01-535-8084 IN
material_document_and_classificationASTM A126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencySEAT RING
NSN4820-01-535-8257
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: TF42002 FC · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: IRON OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAT RING
END ITEM IDENTIFICATION2-1/2 INCH IRON GATE VALVE 4820-01-535-8084 IN
MATERIALIRON OVERALL
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
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 TF42002 FC?
TF42002 FC is a SEAT,VALVE.
What is the NSN for TF42002 FC?
TF42002 FC is cataloged in the U.S. Government catalog under NSN 4820-01-535-8257. 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.