The Register,air, cataloged under National Stock Number 4520-01-241-5592, 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 Alter Harry Co the Div of T E C. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-241-5592 |
| Primary Part Number | 72350 |
| Item Name | Register,air |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Alter Harry Co the Div of T E C |
| Status | ACTIVE |
| Overall Diameter | 9.312 INCHES NOMINAL IN |
| Shape | ROUND |
| Frame Type | FLAT |
| Blade Quantity | 1 |
| Frame Removability | NONREMOVABLE |
| Deflector Blade Operating Method | ANY ACCEPTABLE |
| Material | STEEL |
| Blade Vertical Surface Axis Position | HORIZONTAL |
| Grille Quantity | 4 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 72350 PRIMARY | Alter Harry Co the Div of T E C (USA) |
| Reference | Meaning |
|---|---|
| 12900 | 5/9 Secondary reference Interpace Corp Hart and Cooley Div |
NSN 4520-01-241-5592 is a Register,air, manufactured by Alter Harry Co the Div of T E C, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-241-5592 has 1 manufacturer part number on file: 72350 (Alter Harry Co the Div of T E C).
3 possible matches (shared part number, not a government interchangeability claim): 8145-01-374-0367, 7045-01-384-3761, 5325-01-472-7612. Verify interchangeability with system specifications before substitution.
Key specifications for 72350: Overall Diameter: 9.312 INCHES NOMINAL IN; Shape: ROUND; Frame Type: FLAT; Blade Quantity: 1. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.