NSN 4520-01-630-5566 · NIIN 016305566 · Part number 1961K57
Mcmaster-Carr Supply Co · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 0KVE6
Government record, cited
NSN 4520-01-630-5566 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-630-5566. Manufacturer of record part number: 1961K57.
Also searched as4520-01-630-5566 ·
4520016305566 ·
NIIN 016305566 ·
01-630-5566 ·
FSC 4520 Space and Water Heating Equipment · CAGE 0KVE6 · 1961K57
Nearby stock numbers← 4520-01-630-5549 Register, Air
·
4520-01-630-5654 Heater, Fluid, Electric →
Features
Register,air — FSC 4520
1 manufacturer part number on file
Manufacturer of record: Mcmaster-Carr Supply Co
Identification
NSN: 4520-01-630-5566
NIIN: 016305566
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 1961K57
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Register,air, cataloged under National Stock Number 4520-01-630-5566, 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 4520-01-630-5566?
NSN 4520-01-630-5566 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 4520-01-630-5566?
NSN 4520-01-630-5566 has 1 manufacturer part number on file: 1961K57 (Mcmaster-Carr Supply Co).
What are the specifications of 1961K57?
Key specifications for 1961K57: Overall Height: 36.0 INCHES NOMINAL IN; Overall Length: 36.0 INCHES NOMINAL IN; Special Features: SURFACE-MOUNT TYPE 304 STAINLESS STEEL; CORROSION-RESISTANT MOVABLE-BLADE WALL LOUVERS ABLE TO WITHSTAND HARSH ENVIRONMENTS, THESE LOUVERS WON'T RUST. THEY ARE GRAVITY OPERATED. THE LOUVERS REMAIN OPEN ONLY WHEN AIR FLOWS PREVENTING BACK DRAFTS METRIC 914.4MM X 914.MM MM; Part Name Assigned by Controlling Agency: LOUVER, PVC, 36 INC X 36 INC. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4520-01-630-5566 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.