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TB-404 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

TB-404: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: IRON CAST BODY, end_item_identification: HYDRAULIC TEST STAND HTB-50E, part_name_assigned_by_controlling_agency: 3 INCH, CAST-IRON BODY, SCREW ENDS 150LB OWG LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-528-3989, 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
TB-404
NSN: 4820-01-528-3989
FSC: 4820 — Valves, Nonpowered
CAGE: 08832 — SCHROEDER INDUSTRIES LLC (USA)
SPECIFICATIONS
materialIRON CAST BODY
end_item_identificationHYDRAULIC TEST STAND HTB-50E
part_name_assigned_by_controlling_agency3 INCH, CAST-IRON BODY, SCREW ENDS 150LB OWG LBS
NSN4820-01-528-3989
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: TB-404 · 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: IRON CAST BODY
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCY3 INCH, CAST-IRON BODY, SCREW ENDS 150LB OWG LBS
END ITEM IDENTIFICATIONHYDRAULIC TEST STAND HTB-50E
MATERIALIRON CAST BODY
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 1
D4232 ITEM-182Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 TB-404?
TB-404 is a VALVE,BUTTERFLY.
What parts can replace TB-404?
There is 1 known substitute for TB-404: D4232 ITEM-182. Substitute compatibility should be verified for your specific system.
What is the NSN for TB-404?
TB-404 is cataloged in the U.S. Government catalog under NSN 4820-01-528-3989. 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.