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3863048-1 — HOUSING,GEARBOX,TURBINE ENGINE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3863048-1: HOUSING,GEARBOX,TURBINE ENGINE.

The HOUSING,GEARBOX,TURBINE ENGINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OVERALL, flange_diameter: 0.374 INCHES NOMINAL IN, hardness_rating: 350.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL, style_designator: PLAIN FLANGED, surface_treatment: PASSIVATE OVERALL, under_flange_height: 0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-003-4345, 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
3863048-1
NSN: 4820-01-003-4345
NIINs: 010034345, 013274179
FSC: 4820 — Valves, Nonpowered
CAGE: 33068 — TRIUMPH ACTUATION SYSTEMS - CONNECTICUT, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
flange_diameter0.374 INCHES NOMINAL IN
hardness_rating350.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
style_designatorPLAIN FLANGED
surface_treatmentPASSIVATE OVERALL
under_flange_height0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
body_inside_diameter0.189 INCHES NOMINAL IN
body_outside_diameter0.183 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
NSN4820-01-003-4345
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3863048-1 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.374 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.183 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
•
HARDNESS RATING: 350.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.189 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
UNDER FLANGE HEIGHT: 0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
FLANGE DIAMETER0.374 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.183 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
HARDNESS RATING350.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.189 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
UNDER FLANGE HEIGHT0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
MATERIALSTEEL COMP 440C 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 3863048-1?
3863048-1 is a HOUSING,GEARBOX,TURBINE ENGINE.
What is the NSN for 3863048-1?
3863048-1 is cataloged in the U.S. Government catalog under NSN 4820-01-003-4345. 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.