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NSN 4520-01-304-9745Government record, cited

Valve, Air Venting, Steam4520-01-304-9745

NSN 4520-01-304-9745 · NIIN 013049745 · Part number 4928K3
Mcmaster-Carr Supply Co · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 39428
Government record, cited
NSN 4520-01-304-9745 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-304-9745. Manufacturer of record part number: 4928K3.
Also searched as  4520-01-304-9745 · 4520013049745 · NIIN 013049745 · 01-304-9745 · FSC 4520 Space and Water Heating Equipment · CAGE 39428 · 4928K3
Nearby stock numbers  ·
Features
  • Valve,air Venting,steam — FSC 4520
  • Valve Air Return Prevention: NOT REQUIRED
  • Valve Connection Size: 0.250 INCHES IN
  • Valve Water Pressure Position: OPEN
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Valve Shape: STRAIGHT W/FEMALE TAPPED DRIP CONNECTION
  • Valve Type: QUICK AIR VENT
  • Material: COPPER ALLOY
Identification
  • NSN: 4520-01-304-9745
  • NIIN: 013049745
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
  • Primary part number: 4928K3
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Valve,air Venting,steam, cataloged under National Stock Number 4520-01-304-9745, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 7 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
NSN4520-01-304-9745
Primary Part Number4928K3
Item NameValve,air Venting,steam
FSC / FSG4520 / 45 — Space and Water Heating Equipment
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Valve Air Return PreventionNOT REQUIRED
Valve Connection Size0.250 INCHES IN
Valve Water Pressure PositionOPEN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Valve ShapeSTRAIGHT W/FEMALE TAPPED DRIP CONNECTION
Valve TypeQUICK AIR VENT
MaterialCOPPER ALLOY
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
4928K3 PRIMARY Mcmaster-Carr Supply Co (USA)
No interchangeability data on file.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE

Frequently Asked Questions

What is NSN 4520-01-304-9745?

NSN 4520-01-304-9745 is a Valve,air Venting,steam, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-304-9745?

NSN 4520-01-304-9745 has 1 manufacturer part number on file: 4928K3 (Mcmaster-Carr Supply Co).

What are the specifications of 4928K3?

Key specifications for 4928K3: Valve Air Return Prevention: NOT REQUIRED; Valve Connection Size: 0.250 INCHES IN; Valve Water Pressure Position: OPEN; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4520-01-304-9745 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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