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P1881Q — STEM,NEEDLE VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

P1881Q: STEM,NEEDLE VALVE.

The STEM,NEEDLE VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_length: 5.750 INCHES NOMINAL IN, stem_actuating_end_type: THREADED EXTERNALLY, largest_outside_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-953-8630, 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
P1881Q
NSN: 4820-00-953-8630
FSC: 4820 — Valves, Nonpowered
CAGE: 74965 — CLARK-RELIANCE LLC DBA JERGUSON GAGE & VALVE (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_length5.750 INCHES NOMINAL IN
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter1.000 INCHES NOMINAL IN
NSN4820-00-953-8630
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P1881Q · 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
•
LARGEST OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
LARGEST OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
OVERALL LENGTH5.750 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 1
S658Reference 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 P1881Q?
P1881Q is a STEM,NEEDLE VALVE.
What parts can replace P1881Q?
There is 1 known substitute for P1881Q: S658. Substitute compatibility should be verified for your specific system.
What is the NSN for P1881Q?
P1881Q is cataloged in the U.S. Government catalog under NSN 4820-00-953-8630. 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.