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476-7988-1 — HEATER ASSEMBLY,FUE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

476-7988-1: HEATER ASSEMBLY,FUE.

The HEATER ASSEMBLY,FUE is a the manufacturer industrial component. Key specifications include precious_material: GOLD, end_item_identification: MQ-4C, criticality_code_justification: AGAV. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-525-2269, 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
476-7988-1
NSN: 4820-01-525-2269
FSC: 4820 — Valves, Nonpowered
CAGE: 50422 — TAYCO ENGINEERING, INC. DBA TAYCO ENGINEERING (USA)
SPECIFICATIONS
precious_materialGOLD
end_item_identificationMQ-4C
criticality_code_justificationAGAV
NSN4820-01-525-2269
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 476-7988-1 · 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
•
PRECIOUS MATERIAL: GOLD
•
CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS
PRECIOUS MATERIALGOLD
CRITICALITY CODE JUSTIFICATIONAGAV
END ITEM IDENTIFICATIONMQ-4C
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
3671217P01004-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 476-7988-1?
476-7988-1 is a HEATER ASSEMBLY,FUE.
What parts can replace 476-7988-1?
There is 1 known substitute for 476-7988-1: 3671217P01004-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 476-7988-1?
476-7988-1 is cataloged in the U.S. Government catalog under NSN 4820-01-525-2269. 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.