Nearby stock numbers← 4820-00-673-6255 Valve, Vent and Drai
·
4820-00-673-6257 Valve, Vent and Drai →
4820-00-673-6256 — Valves, Nonpowered
Features
Valve,vent and Drai — FSC 4820
Identification
NSN: 4820-00-673-6256
NIIN: 006736256
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Valve,vent and Drai, cataloged under National Stock Number 4820-00-673-6256, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Valve,vent and Drai
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-00-673-6256
Item Name
Valve,vent and Drai
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL F — Mutilate — Cut
Hazard
No hazard code in the DLA record (HMIC N)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
40-1220-1PTAC4500C
3/2Design control — primary reference
U.S. Government activity
40-1220-AC-4500-C
5/1Secondary reference
U.S. Government activity
AC4500C
5/2Secondary reference
U.S. Government activity
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 4820-00-673-6256?
NSN 4820-00-673-6256 is a Valve,vent and Drai, classified under FSC 4820, Valves, Nonpowered. Status: active.
Is NSN 4820-00-673-6256 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.
What is the DEMIL code for NSN 4820-00-673-6256?
NSN 4820-00-673-6256 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.