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20861-001 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20861-001: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_similarity: NOT IDENTICAL, special_features: MATL-CRES STEEL PER MIL-S-5059;FOR DIRECTIONAL CONTROL VALVE, end_item_identification: 4820-01-203-5062, material_document_and_classification: MIL-B-24059 MIL STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-203-5062, 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
20861-001
NSN: 4820-01-203-5062
NIINs: 012035062, 013705537, 013706087, 013707998, 013734656
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialNICKEL ALLOY
end_similarityNOT IDENTICAL
special_featuresMATL-CRES STEEL PER MIL-S-5059;FOR DIRECTIONAL CONTROL VALVE
end_item_identification4820-01-203-5062
material_document_and_classificationMIL-B-24059 MIL STD SINGLE MATERIAL RESPONSE
NSN4820-01-203-5062
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20861-001 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONHYD 3000PSI ALUM
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 20861-001?
20861-001 is a RESTRICTOR,FLUID FLOW.
What is the NSN for 20861-001?
20861-001 is cataloged in the U.S. Government catalog under NSN 4820-01-203-5062. 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.