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1877981 — VALVE,FLOW CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1877981: VALVE,FLOW CONTROL.

The VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include specific_use: DECKS, material_form: SOLID, material_type: PLASTIC, special_features: PHENOLIC PLASTIC, end_item_identification: RADAR TYPE 93. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-441-6773, 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
1877981
NSN: 4820-01-441-6773
NIINs: 014416773, 014765153
FSC: 4820 — Valves, Nonpowered
CAGE: S8829 — CARGOTEC SWEDEN AB - MACGREGOR CRANES (SWE)
SPECIFICATIONS
specific_useDECKS
material_formSOLID
material_typePLASTIC
special_featuresPHENOLIC PLASTIC
end_item_identificationRADAR TYPE 93
NSN4820-01-441-6773
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1877981 · 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 2
1877981-801Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
1877804-801 ITEM NO. 001Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1877981?
1877981 is a VALVE,FLOW CONTROL.
What parts can replace 1877981?
There are 2 known substitutes for 1877981: 1877981-801, 1877804-801 ITEM NO. 001. Substitute compatibility should be verified for your specific system.
What is the NSN for 1877981?
1877981 is cataloged in the U.S. Government catalog under NSN 4820-01-441-6773. 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.