NSN 4520-01-631-4010 · NIIN 016314010 · Part number 18425K81
Mcmaster-Carr Supply Co · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 0KVE6
Government record, cited
NSN 4520-01-631-4010 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-631-4010. Manufacturer of record part number: 18425K81.
Also searched as4520-01-631-4010 ·
4520016314010 ·
NIIN 016314010 ·
01-631-4010 ·
FSC 4520 Space and Water Heating Equipment · CAGE 0KVE6 · 18425K81
The Register,air, cataloged under National Stock Number 4520-01-631-4010, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
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 4520-01-631-4010?
NSN 4520-01-631-4010 is a Register,air, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-01-631-4010?
NSN 4520-01-631-4010 has 1 manufacturer part number on file: 18425K81 (Mcmaster-Carr Supply Co).
What are the specifications of 18425K81?
Key specifications for 18425K81: Overall Height: 4.0 INCHES NOMINAL IN; Overall Length: 8.0 INCHES NOMINAL IN; Special Features: CONTROL AIRFLOW USING THE DAMPER ON THESE REGISTERS; STAMPED STEEL WITH WHITE FINISH; OVERALL SIZE IS 1.375" GREATER THANTHE DUCT SIZE; MOUNTING FASTENERS ARE INCLUDED; METRIC DIMENSIONS: 203.2MM X 101.6MM NECK MM; Part Name Assigned by Controlling Agency: SUPPLY REGISTOR W/DAMPER 8"X4". 0 specifications are documented in the U.S. Government catalog.
Is NSN 4520-01-631-4010 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.