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4551F2B — VALVE,GLOBE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4551F2B: VALVE,GLOBE.

The VALVE,GLOBE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-010-1126, 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
4551F2B
NSN: 4820-01-010-1126
NIINs: 010101126, 012521707
FSC: 4820 — Valves, Nonpowered
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
NSN4820-01-010-1126
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4551F2B · 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
•
FLOW CONTROL DEVICE: DISK
•
RENEWABLE SEAT RING TYPE: PRESSED-IN
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
BONNET TYPE: INSIDE SCREW
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
RENEWABLE SEAT RING TYPEPRESSED-IN
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BONNET TYPEINSIDE SCREW
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 2
480Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2912553-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4551F2B?
4551F2B is a VALVE,GLOBE.
What parts can replace 4551F2B?
There are 2 known substitutes for 4551F2B: 480, 2912553-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 4551F2B?
4551F2B is cataloged in the U.S. Government catalog under NSN 4820-01-010-1126. 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.