PartsTable
Technical Data Sheet

LINE1:FL 77N-0150-1SS-R1 — SEAT,HULL DRAIN POPPET VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

LINE1:FL 77N-0150-1SS-R1: SEAT,HULL DRAIN POPPET VALVE.

The SEAT,HULL DRAIN POPPET VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING AND CARBON OVERALL, outside_diameter: 5.500 INCHES NOMINAL IN, special_features: MATERIAL: RTFE + SS, style_designator: BUTTERFLY, material_thickness: 1.920 INCHES NOMINAL IN, bolt_circle_diameter: 2.910 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-651-7469, 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
LINE1:FL 77N-0150-1SS-R1
NSN: 4820-01-651-7469
NIINs: 016517469, 016517534, 016519387, 016519643, 016519757, 016519765, 016519777, 016519782, 016524423, 016524872, 016526722, 016526732, 016526752
FSC: 4820 — Valves, Nonpowered
CAGE: 6SPR5 — FLOWLINE VALVE AND CONTROLS, L.L.C. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING AND CARBON OVERALL
outside_diameter5.500 INCHES NOMINAL IN
special_featuresMATERIAL: RTFE + SS
style_designatorBUTTERFLY
material_thickness1.920 INCHES NOMINAL IN
bolt_circle_diameter2.910 INCHES NOMINAL IN
end_item_identification4" BUTTERFLY VALVE
stem_actuating_end_typeSQUARE
largest_outside_diameter0.71 INCHES NOMINAL IN
media_for_which_designedFLUIDS
valve_size_for_which_designed2.50 INCHES IN
valve_type_for_which_designedBUTTERFLY
NSN4820-01-651-7469
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LINE1:FL 77N-0150-1SS-R1 · 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
•
MEDIA FOR WHICH DESIGNED: FLUIDS
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESCONCAVE DISC
MEDIA FOR WHICH DESIGNEDFLUIDS
PART NAME ASSIGNED BY CONTROLLING AGENCYDISC
SUBSTITUTES & CROSS-REFERENCES 1
LINE 2:REV D NO.5 P/N 76N-5C004Reference 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 LINE1:FL 77N-0150-1SS-R1?
LINE1:FL 77N-0150-1SS-R1 is a SEAT,HULL DRAIN POPPET VALVE.
What parts can replace LINE1:FL 77N-0150-1SS-R1?
There is 1 known substitute for LINE1:FL 77N-0150-1SS-R1: LINE 2:REV D NO.5 P/N 76N-5C004. Substitute compatibility should be verified for your specific system.
What is the NSN for LINE1:FL 77N-0150-1SS-R1?
LINE1:FL 77N-0150-1SS-R1 is cataloged in the U.S. Government catalog under NSN 4820-01-651-7469. 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.