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8551-1-4 — VALVE,PLUG

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8551-1-4: VALVE,PLUG.

The VALVE,PLUG is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 0.053 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN, cross-sectional_height: 0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-867-9704, 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
8551-1-4
NSN: 4820-00-867-9704
NIINs: 008679704, 010498250
FSC: 4820 — Valves, Nonpowered
CAGE: 86768 — TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter0.053 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
cross-sectional_height0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
NSN4820-00-867-9704
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8551-1-4 · 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
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
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CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
FLOW STYLE: FOUR-WAY FOUR PORT 90 DEGREE PLUG TURN
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OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
FEATURES PROVIDED: ADJUSTABLE ROTATION STOP
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
MAXIMUM OPERATING TEMP: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
FLOW STYLEFOUR-WAY FOUR PORT 90 DEGREE PLUG TURN
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FEATURES PROVIDEDADJUSTABLE ROTATION STOP
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP160.0 FAHRENHEIT SINGLE RESPONSE DEGF
MOUNTING FACILITYTHREADED FASTENER
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
SUBSTITUTES & CROSS-REFERENCES 1
8551-1-4HD2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 8551-1-4?
8551-1-4 is a VALVE,PLUG.
What parts can replace 8551-1-4?
There is 1 known substitute for 8551-1-4: 8551-1-4HD2. Substitute compatibility should be verified for your specific system.
What is the NSN for 8551-1-4?
8551-1-4 is cataloged in the U.S. Government catalog under NSN 4820-00-867-9704. 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.