The Adapter,acme Thread, cataloged under National Stock Number 4920-01-225-4548, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Nook Industries Llc Dba Ball Bearing Screw Supply Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4920-01-225-4548 |
| Primary Part Number | 20075 |
| Item Name | Adapter,acme Thread |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Nook Industries Llc Dba Ball Bearing Screw Supply Inc |
| Status | ACTIVE |
| General Characteristics Item Description | LEADED BEARING BRONZE; 1.250 IN. LG; 1.125 IN. DIA IN |
| 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 |
|---|---|
| 20075 | Nook Industries Llc Dba Ball Bearing Screw Supply Inc (USA) |
| Reference | Meaning |
|---|---|
| 3M1079-1 | 5/9 Secondary reference The Boeing Company Div Defense |
| 20075 | 3/9 Design control — primary reference Nook Industries Inc Ball Bearing Screw Supply Div |
NSN 4920-01-225-4548 is a Adapter,acme Thread, manufactured by Nook Industries Llc Dba Ball Bearing Screw Supply Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-225-4548 has 1 manufacturer part number on file: 20075 (Nook Industries Llc Dba Ball Bearing Screw Supply Inc).
3 possible matches (shared part number, not a government interchangeability claim): 2530-01-353-7500, 5965-01-387-8751, 4520-01-465-2512. Verify interchangeability with system specifications before substitution.
Key specifications for 20075: General Characteristics Item Description: LEADED BEARING BRONZE; 1.250 IN. LG; 1.125 IN. DIA IN; End Item Identification: GROUND SUPPORT EQUIPMENT F-18 AIRCRAFT. 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.