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P187-4 — DIAPHRAGM,PUMP,SPECIAL SHAPED

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

P187-4: DIAPHRAGM,PUMP,SPECIAL SHAPED.

The DIAPHRAGM,PUMP,SPECIAL SHAPED is a the manufacturer industrial component. Key specifications include material: IRON, shank_diameter: 0.312 INCHES NOMINAL IN, flange_diameter: 0.900 INCHES NOMINAL IN, outside_diameter: 1.500 INCHES NOMINAL IN, special_features: DIAPHRAGM TOP IS USED TO CLAMP THE RUBBER DIAPHRAGM TO THE DIAPHRAGM BOTTOM, end_item_identification: NHA: PUMP GROUP. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-955-6752, 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
P187-4
NSN: 4820-00-955-6752
NIINs: 009556752, 015272170
FSC: 4820 — Valves, Nonpowered
CAGE: 75214 — KAHLENBERG INDUSTRIES, INC. DBA KAHLENBERG INDUSTRIES INC (USA)
SPECIFICATIONS
materialIRON
shank_diameter0.312 INCHES NOMINAL IN
flange_diameter0.900 INCHES NOMINAL IN
outside_diameter1.500 INCHES NOMINAL IN
special_featuresDIAPHRAGM TOP IS USED TO CLAMP THE RUBBER DIAPHRAGM TO THE DIAPHRAGM BOTTOM
end_item_identificationNHA: PUMP GROUP
part_name_assigned_by_controlling_agencyDIAPHRAGM TOP
NSN4820-00-955-6752
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P187-4 · 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
•
SHANK DIAMETER: 0.312 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.900 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.500 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY AND PLASTIC
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.312 INCHES NOMINAL IN
FLANGE DIAMETER0.900 INCHES NOMINAL IN
OUTSIDE DIAMETER1.500 INCHES NOMINAL IN
MATERIALCOPPER ALLOY AND PLASTIC
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P187-4?
P187-4 is a DIAPHRAGM,PUMP,SPECIAL SHAPED.
What is the NSN for P187-4?
P187-4 is cataloged in the U.S. Government catalog under NSN 4820-00-955-6752. 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.