The Adapter,pressure, cataloged under National Stock Number 4920-00-490-4401, 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 Rosemount Specialty Products Llc Div Emerson Electric Co.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4920-00-490-4401 |
| Primary Part Number | 40100-000-00 |
| Item Name | Adapter,pressure |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rosemount Specialty Products Llc Div Emerson Electric Co. |
| Status | ACTIVE |
| General Characteristics Item Description | 0.740 IN. LG,0.875 IN. W 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 |
|---|---|
| 40100-000-00 PRIMARY | Rosemount Specialty Products Llc Div Emerson Electric Co. (USA) |
| Reference | Meaning |
|---|---|
| 247-99-780-04 | 5/9 Secondary reference Rosemount Specialty Products Llc Div Emerson Electric Co. |
| K290 | 5/9 Secondary reference Rosemount Specialty Products Llc Div Emerson Electric Co. |
| 98-017504 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4920-00-490-4401 is a Adapter,pressure, manufactured by Rosemount Specialty Products Llc Div Emerson Electric Co., classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-490-4401 has 1 manufacturer part number on file: 40100-000-00 (Rosemount Specialty Products Llc Div Emerson Electric Co.).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-286-0448. Verify interchangeability with system specifications before substitution.
Key specifications for 40100-000-00: General Characteristics Item Description: 0.740 IN. LG,0.875 IN. W 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.