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SA22145 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

SA22145: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include overall_length: 22.500 INCHES NOMINAL IN, stem_actuating_end_type: THREADED EXTERNALLY, largest_outside_diameter: 1.246 INCHES NOMINAL IN, valve_size_for_which_designed: 2.500 INCHES IN, valve_type_for_which_designed: RELIEF, valve_model_number_for_which_designed: HNB. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-233-8078, 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
SA22145
NSN: 4820-01-233-8078
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
overall_length22.500 INCHES NOMINAL IN
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter1.246 INCHES NOMINAL IN
valve_size_for_which_designed2.500 INCHES IN
valve_type_for_which_designedRELIEF
valve_model_number_for_which_designedHNB
NSN4820-01-233-8078
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SA22145 · 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
•
VALVE TYPE FOR WHICH DESIGNED: RELIEF
•
LARGEST OUTSIDE DIAMETER: 1.246 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: HNB
•
VALVE SIZE FOR WHICH DESIGNED: 2.500 INCHES IN
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDRELIEF
LARGEST OUTSIDE DIAMETER1.246 INCHES NOMINAL IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
VALVE MODEL NUMBER FOR WHICH DESIGNEDHNB
OVERALL LENGTH22.500 INCHES NOMINAL IN
VALVE SIZE FOR WHICH DESIGNED2.500 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
A44254Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
A44254 PIECE 24 TO 27Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 SA22145?
SA22145 is a STEM,FLUID VALVE.
What parts can replace SA22145?
There are 2 known substitutes for SA22145: A44254, A44254 PIECE 24 TO 27. Substitute compatibility should be verified for your specific system.
What is the NSN for SA22145?
SA22145 is cataloged in the U.S. Government catalog under NSN 4820-01-233-8078. 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.