The Elbow,air Conditioning-Heating, cataloged under National Stock Number 4520-00-787-9864, 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 Bae Systems Land & Armaments L.p.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-787-9864 |
| Primary Part Number | 80770-1081 |
| Item Name | Elbow,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| Overall Diameter | 3.034 INCHES NOMINAL IN |
| Adjustability Feature | INCLUDED |
| Overall Thickness | 0.017 INCHES NOMINAL IN |
| Style Designator | ADJUSTABLE |
| Sheet Metal Gage Size | 26 |
| Material | STEEL |
| Diameter | 3.000 INCHES IN |
| Angle in Deg | 90.0 |
| Construction Type | SINGLE |
| 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 |
|---|---|
| 80770-1081 | Asrc Federal Facilities Logistics, Llc (USA) |
| 80770-1081 | Amz Alabama Inc. (USA) |
| 80770-1081 PRIMARY | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| 80770-1081 | 5/9 Secondary reference U.S. Government activity |
NSN 4520-00-787-9864 is a Elbow,air Conditioning-Heating, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-787-9864 has 3 manufacturer part numbers on file: 80770-1081 (Asrc Federal Facilities Logistics, Llc), 80770-1081 (Amz Alabama Inc.), 80770-1081 (Bae Systems Land & Armaments L.p.).
Key specifications for 80770-1081: Overall Diameter: 3.034 INCHES NOMINAL IN; Adjustability Feature: INCLUDED; Overall Thickness: 0.017 INCHES NOMINAL IN; Style Designator: ADJUSTABLE. 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.