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NSN 4820-01-273-5809Government record, cited

Cap, Valve4820-01-273-5809

NSN 4820-01-273-5809 · NIIN 012735809 · Part number 3446891

Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 21439

Government record, cited

NSN 4820-01-273-5809 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-273-5809. Manufacturer of record part number: 3446891.

Also searched as 4820-01-273-5809 · 4820012735809 · NIIN 012735809 · 01-273-5809 · FSC 4820 Valves, Nonpowered · CAGE 21439 · 3446891 · 344 6891

Nearby stock numbers ← 4820-01-273-5791 Pivot, Valve · 4820-01-273-5892 Guide, Valve Stem →

4820-01-273-5809 — Valves, Nonpowered

Features

Cap,valve — FSC 4820
Outside Diameter: 1.732 INCHES NOMINAL IN
1 manufacturer part number on file
Manufacturer of record: Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba

Identification

NSN: 4820-01-273-5809
NIIN: 012735809
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3446891
Manufacturer: Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba

General Description

The Cap,valve, cataloged under National Stock Number 4820-01-273-5809, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-273-5809
Primary Part Number	3446891
Item Name	Cap,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Status	ACTIVE
Outside Diameter	1.732 INCHES NOMINAL IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
3446891 PRIMARY	Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)

Reference documents

Reference	Meaning
344 6891	5/9 Secondary reference Hiab Usa Inc

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-273-5809?

NSN 4820-01-273-5809 is a Cap,valve, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-273-5809?

NSN 4820-01-273-5809 has 1 manufacturer part number on file: 3446891 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).

What are the specifications of 3446891?

Key specifications for 3446891: Overall Length: 2.776 INCHES NOMINAL IN; Outside Diameter: 1.732 INCHES NOMINAL IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-273-5809 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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