The Bushing Apron, cataloged under National Stock Number 3820-00-802-7015, is classified within Federal Supply Class 3820 (Mining, Rock Drilling, Earth Boring, and Related Equipment) of the Construction, Mining, Excavating Equipment group. The manufacturer of record is Union Chain Div of Ust Inc. Government technical data includes 1 specification, 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. 2 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 | 3820-00-802-7015 |
| Primary Part Number | 12533Q53 |
| Item Name | Bushing Apron |
| FSC / FSG | 3820 / 38 — Mining, Rock Drilling, Earth Boring, and Related Equipment |
| Manufacturer | Union Chain Div of Ust Inc |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL,OD 1.375 IN. @ID 0.875 IN. WIDTH ACROSS FLATS 1.188,O/A LG 2.438,TWO HOLES UNTHREADED,0.250 IN. 180DEG APART,BOTH INSIDE AND OUTSIDE CORNERS CHAMFERED 0.062 X 45DEG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3820-00-802-7015 is a Bushing Apron, manufactured by Union Chain Div of Ust Inc, classified under FSC 3820, Mining, Rock Drilling, Earth Boring, and Related Equipment. Status: active.
NSN 3820-00-802-7015 has 3 manufacturer part numbers on file: Q53 (Union Chain Div of Ust Inc), 12533Q53 (Union Chain Div of Ust Inc), F2467Q53 (Eagle Crusher Co Inc Dba Stedman Machine Co).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-357-7244, 7030-01-725-0115. Verify interchangeability with system specifications before substitution.
Key specifications for 12533Q53: General Characteristics Item Description: MATERIAL STEEL,OD 1.375 IN. @ID 0.875 IN. WIDTH ACROSS FLATS 1.188,O/A LG 2.438,TWO HOLES UNTHREADED,0.250 IN. 180DEG APART,BOTH INSIDE AND OUTSIDE CORNERS CHAMFERED 0.062 X 45DEG IN. 1 specification is 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.