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19881N PIECE 20 — RETAINER,DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

19881N PIECE 20: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER MOUNTING FACILITY, head_style: HEADLESS (SETSCREW), point_style: CONE, thread_class: 2A A, largest_width: 0.187 INCHES SINGLE END IN, overall_width: 1.094 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-106-1358, 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
19881N PIECE 20
NSN: 4820-01-106-1358
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER MOUNTING FACILITY
head_styleHEADLESS (SETSCREW)
point_styleCONE
thread_class2A A
largest_width0.187 INCHES SINGLE END IN
overall_width1.094 INCHES IN
thread_length1.130 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_length2.625 INCHES IN
fastener_length1.130 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
hardness_rating29.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
locking_featurePATCH THREADS
NSN4820-01-106-1358
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 19881N PIECE 20 · 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
SUBSTITUTES & CROSS-REFERENCES 1
54113Reference 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 19881N PIECE 20?
19881N PIECE 20 is a RETAINER,DISK,VALVE.
What parts can replace 19881N PIECE 20?
There is 1 known substitute for 19881N PIECE 20: 54113. Substitute compatibility should be verified for your specific system.
What is the NSN for 19881N PIECE 20?
19881N PIECE 20 is cataloged in the U.S. Government catalog under NSN 4820-01-106-1358. 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.