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NSN 4820-01-439-3905Government record, cited

Screen, Protective, Vent Valve4820-01-439-3905

NSN 4820-01-439-3905 · NIIN 014393905 · Part number 1611SS
Robert H Wager Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79128
Government record, cited
NSN 4820-01-439-3905 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-439-3905. Manufacturer of record part number: 1611SS.
Also searched as  4820-01-439-3905 · 4820014393905 · NIIN 014393905 · 01-439-3905 · FSC 4820 Valves, Nonpowered · CAGE 79128 · 1611SS
Nearby stock numbers  ·
Features
  • Screen,protective,vent Valve — FSC 4820
  • General Characteristics Item Description: 1/4 X 1/4 IN.MESH;COMPONENT OF 2 1/2 IN.VENT VALVE IN
  • Material: STEEL CORROSION RESISTING
  • 1 manufacturer part number on file
  • Manufacturer of record: Robert H Wager Co Inc
Identification
  • NSN: 4820-01-439-3905
  • NIIN: 014393905
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 1611SS
  • Manufacturer: Robert H Wager Co Inc
General Description

The Screen,protective,vent Valve, cataloged under National Stock Number 4820-01-439-3905, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Robert H Wager Co Inc. Government technical data includes 2 specifications, 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-439-3905
Primary Part Number1611SS
Item NameScreen,protective,vent Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerRobert H Wager Co Inc
StatusACTIVE
General Characteristics Item Description1/4 X 1/4 IN.MESH;COMPONENT OF 2 1/2 IN.VENT VALVE IN
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
1611SS PRIMARY Robert H Wager Co Inc (USA)
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 4820-01-439-3905?

NSN 4820-01-439-3905 is a Screen,protective,vent Valve, manufactured by Robert H Wager Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-439-3905?

NSN 4820-01-439-3905 has 1 manufacturer part number on file: 1611SS (Robert H Wager Co Inc).

What are the specifications of 1611SS?

Key specifications for 1611SS: General Characteristics Item Description: 1/4 X 1/4 IN.MESH;COMPONENT OF 2 1/2 IN.VENT VALVE IN; End Item Identification: 4820-01-438-4948;VENT VALVE; Material: STEEL CORROSION RESISTING. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-439-3905 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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