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551-8545100 — SLEEVE,DIRECTIONAL CONTROL LINEA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

551-8545100: SLEEVE,DIRECTIONAL CONTROL LINEA.

SLEEVE,DIRECTIONAL CONTROL LINEA. This part is cataloged in the U.S. Government catalog under NSN 4820-01-713-7920, 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
551-8545100
NSN: 4820-01-713-7920
NIINs: 017137920, 017137925, 017140127, 017140172, 017140198, 017141024
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number551-8545100
NSN4820-01-713-7920
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 551-8545100 · 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
SUBSTITUTES & CROSS-REFERENCES 2
8545100/SHEET 17Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2644-1801-ITEM NO-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 551-8545100?
551-8545100 is a SLEEVE,DIRECTIONAL CONTROL LINEA.
What parts can replace 551-8545100?
There are 2 known substitutes for 551-8545100: 8545100/SHEET 17, 2644-1801-ITEM NO-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 551-8545100?
551-8545100 is cataloged in the U.S. Government catalog under NSN 4820-01-713-7920. 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.