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NMP-1144 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NMP-1144: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: BRONZE BODY, valve_size: 2.0000 INCHES IN, bonnet_type: INSIDE SPRING, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: PART NAME ASSIGNED BY CONTROLLING AGENCY IS SEMI-NOZZLE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-504-4357, 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
NMP-1144
NSN: 4820-01-504-4357
NIINs: 015044357, 015044387, 015361489
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialBRONZE BODY
valve_size2.0000 INCHES IN
bonnet_typeINSIDE SPRING
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresPART NAME ASSIGNED BY CONTROLLING AGENCY IS SEMI-NOZZLE
style_designatorANGLE FLANGED ENDS
mounting_facilityCLAMP
nominal_thickness0.4375 INCHES ALL ENDS IN
bolt_hole_quantity6 ALL ENDS
flange_face_designPLAIN ALL ENDS
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4820-01-504-4357
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NMP-1144 · 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
•
MATERIAL: STEEL COMP 303 SEAT
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESPART NAME ASSIGNED BY CONTROLLING AGENCY IS SEMI-NOZZLE
END ITEM IDENTIFICATIONANGLE RELIEF VALVE P/N NMP-1144
MATERIALSTEEL COMP 303 SEAT
SUBSTITUTES & CROSS-REFERENCES 2
010.303.0139Reference document
Same NSN cross-reference
Reference document — Secondary reference
NMP-1144 PC 23Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 NMP-1144?
NMP-1144 is a VALVE,SAFETY RELIEF.
What parts can replace NMP-1144?
There are 2 known substitutes for NMP-1144: 010.303.0139, NMP-1144 PC 23. Substitute compatibility should be verified for your specific system.
What is the NSN for NMP-1144?
NMP-1144 is cataloged in the U.S. Government catalog under NSN 4820-01-504-4357. 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.