The Elbow,air Conditioning-Heating, cataloged under National Stock Number 4520-00-774-5113, 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 Astec Industries Inc Div Astec Ind.. Government technical data includes 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-774-5113 |
| Primary Part Number | A857-278W |
| Item Name | Elbow,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Astec Industries Inc Div Astec Ind. |
| Status | ACTIVE |
| Adjustability Feature | NOT INCLUDED |
| Length | 95.625 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 |
|---|---|
| A857-278W PRIMARY | Astec Industries Inc Div Astec Ind. (USA) |
| Reference | Meaning |
|---|---|
| 857-278 | 5/9 Secondary reference Barber-Greene Co |
| A857-278W | 5/9 Secondary reference Barber-Greene Co |
| A857-278W | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
| 857-278 | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
NSN 4520-00-774-5113 is a Elbow,air Conditioning-Heating, manufactured by Astec Industries Inc Div Astec Ind., classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-774-5113 has 1 manufacturer part number on file: A857-278W (Astec Industries Inc Div Astec Ind.).
1 possible match (shared part number, not a government interchangeability claim): 5325-00-807-5332. Verify interchangeability with system specifications before substitution.
Key specifications for A857-278W: Adjustability Feature: NOT INCLUDED; Length: 95.625 INCHES IN; Special Features: USE ALLOY ROD WELD; End Item Identification: 38950093638613 MIXING PLANT,ASPHALT. 4 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.