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N5506 PIECE 21 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

N5506 PIECE 21: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, overall_height: 0.670 INCHES NOMINAL IN, flange_diameter: 3.200 INCHES NOMINAL IN, under_flange_height: 0.456 INCHES NOMINAL IN, body_inside_diameter: 1.400 INCHES NOMINAL IN, body_outside_diameter: 3.214 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-184-4279, 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
N5506 PIECE 21
NSN: 4820-01-184-4279
FSC: 4820 — Valves, Nonpowered
CAGE: 09032 — TATE ANDALE, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
overall_height0.670 INCHES NOMINAL IN
flange_diameter3.200 INCHES NOMINAL IN
under_flange_height0.456 INCHES NOMINAL IN
body_inside_diameter1.400 INCHES NOMINAL IN
body_outside_diameter3.214 INCHES NOMINAL IN
flange_seat_to_disk_end_height0.213 INCHES NOMINAL IN
NSN4820-01-184-4279
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N5506 PIECE 21 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.213 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.200 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 3.214 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 1.400 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.456 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.213 INCHES NOMINAL IN
FLANGE DIAMETER3.200 INCHES NOMINAL IN
OVERALL HEIGHT0.670 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER3.214 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.400 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.456 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
N5506Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 N5506 PIECE 21?
N5506 PIECE 21 is a SEAT,VALVE.
What parts can replace N5506 PIECE 21?
There is 1 known substitute for N5506 PIECE 21: N5506. Substitute compatibility should be verified for your specific system.
What is the NSN for N5506 PIECE 21?
N5506 PIECE 21 is cataloged in the U.S. Government catalog under NSN 4820-01-184-4279. 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.