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548341 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

548341: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_diameter: 0.747 INCHES NOMINAL IN, special_features: 0.437 IN. ID COUNTERBORED 0.343 IN.

DEEP,FLANGED ON BOTH ENDS,TOP FLANGE 0.156 IN. THK,BOTTOM FLANGE 0.093 IN. THK IN, style_designator: PLAIN FLANGED, surface_treatment: CHROMIUM OVERALL, under_flange_height: 0.280 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-375-8373, 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
548341
NSN: 4820-00-375-8373
NIINs: 003758373, 014071773
FSC: 4820 — Valves, Nonpowered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_diameter0.747 INCHES NOMINAL IN
special_features0.437 IN. ID COUNTERBORED 0.343 IN. DEEP,FLANGED ON BOTH ENDS,TOP FLANGE 0.156 IN. THK,BOTTOM FLANGE 0.093 IN. THK IN
style_designatorPLAIN FLANGED
surface_treatmentCHROMIUM OVERALL
under_flange_height0.280 INCHES NOMINAL IN
body_inside_diameter0.437 INCHES NOMINAL IN
body_outside_diameter0.747 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.155 INCHES NOMINAL IN
NSN4820-00-375-8373
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 548341 · 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: 0.155 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.747 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.747 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.437 INCHES NOMINAL IN
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
UNDER FLANGE HEIGHT: 0.280 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.155 INCHES NOMINAL IN
FLANGE DIAMETER0.747 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.747 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.437 INCHES NOMINAL IN
SPECIAL FEATURES0.437 IN. ID COUNTERBORED 0.343 IN. DEEP,FLANGED ON BOTH ENDS,TOP FLANGE 0.156 IN. THK,BOTTOM FLANGE 0.093 IN. THK IN
SURFACE TREATMENTCHROMIUM OVERALL
UNDER FLANGE HEIGHT0.280 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEFLAT
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 548341?
548341 is a SEAT,VALVE.
What is the NSN for 548341?
548341 is cataloged in the U.S. Government catalog under NSN 4820-00-375-8373. 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.