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Technical Data Sheet
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B-103,780 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B-103,780: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL SEAT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-289-1601, 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
B-103,780
NSN: 4820-01-289-1601
FSC: 4820 — Valves, Nonpowered
CAGE: 3X894 — CONTROL FLOW, INC. DBA CONTROL FLOW INC (USA)
SPECIFICATIONS
materialSTEEL SEAT
NSN4820-01-289-1601
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-103,780 · 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: STEEL SEAT
TECHNICAL CHARACTERISTICS
MATERIALSTEEL SEAT
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 2
D-102,046 PART 2Reference document
Same NSN cross-reference
Reference document — Secondary reference
D-102,046Reference 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 B-103,780?
B-103,780 is a SEAT,VALVE.
What parts can replace B-103,780?
There are 2 known substitutes for B-103,780: D-102,046 PART 2, D-102,046. Substitute compatibility should be verified for your specific system.
What is the NSN for B-103,780?
B-103,780 is cataloged in the U.S. Government catalog under NSN 4820-01-289-1601. This indicates validated use in U.S. government and defense supply chains.
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