PartsTable TECHNICAL DATA SHEET
NSN 4520-01-631-4022Government record, cited

Register, Air4520-01-631-4022

NSN 4520-01-631-4022 · NIIN 016314022 · Part number 350RLAG-15-22X10
Watts Engineering Sales, Inc · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 55UC0
Government record, cited
NSN 4520-01-631-4022 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-631-4022. Manufacturer of record part number: 350RLAG-15-22X10.
Also searched as  4520-01-631-4022 · 4520016314022 · NIIN 016314022 · 01-631-4022 · FSC 4520 Space and Water Heating Equipment · CAGE 55UC0 · 350RLAG-15-22X10
Nearby stock numbers  ·
Features
  • Register,air — FSC 4520
  • 1 manufacturer part number on file
  • Manufacturer of record: Watts Engineering Sales, Inc
Identification
  • NSN: 4520-01-631-4022
  • NIIN: 016314022
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
  • Primary part number: 350RLAG-15-22X10
  • Manufacturer: Watts Engineering Sales, Inc
General Description

The Register,air, cataloged under National Stock Number 4520-01-631-4022, 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 Watts Engineering Sales, Inc. 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
NSN4520-01-631-4022
Primary Part Number350RLAG-15-22X10
Item NameRegister,air
FSC / FSG4520 / 45 — Space and Water Heating Equipment
ManufacturerWatts Engineering Sales, Inc
StatusACTIVE
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
350RLAG-15-22X10 PRIMARY Watts Engineering Sales, Inc (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 4520-01-631-4022?

NSN 4520-01-631-4022 is a Register,air, manufactured by Watts Engineering Sales, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-631-4022?

NSN 4520-01-631-4022 has 1 manufacturer part number on file: 350RLAG-15-22X10 (Watts Engineering Sales, Inc).

What are the specifications of 350RLAG-15-22X10?

Key specifications for 350RLAG-15-22X10: Overall Height: 10.0 INCHES NOMINAL IN; Overall Length: 22.0 INCHES NOMINAL IN; Special Features: STEEL, 3/4INCH BLADE SPACING AT 35 DEGREES DEFLECTION; DIMENSION: METRIC 558.8MM X 254MM NECK MM; Part Name Assigned by Controlling Agency: RETURN GRILLE 22"X10". 0 specifications are documented in the U.S. Government catalog.

Is NSN 4520-01-631-4022 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.
PartsTable Design LLC · partstable.com