The Test Adapter,back-Up Pressure Re, cataloged under National Stock Number 4920-01-177-5017, 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 Eaton Corporation Div Fed. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4920-01-177-5017 |
| Primary Part Number | 188752 |
| Item Name | Test Adapter,back-Up Pressure Re |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Eaton Corporation Div Fed |
| Status | ACTIVE |
| General Characteristics Item Description | C/O COVER PLATE,SEAL CONNECTED TO THE REGULATORS INLET FEMALE FLANGE BY A COUPLING; FITTING TO INTERFACE THE ADAPTER TO THE PNEUMATIC COMPONENT TEST STAND |
| 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 |
|---|---|
| 188752 PRIMARY | Eaton Corporation Div Fed (USA) |
| Reference | Meaning |
|---|---|
| R-TBD-808 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
NSN 4920-01-177-5017 is a Test Adapter,back-Up Pressure Re, manufactured by Eaton Corporation Div Fed, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-177-5017 has 1 manufacturer part number on file: 188752 (Eaton Corporation Div Fed).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-281-4075. Verify interchangeability with system specifications before substitution.
Key specifications for 188752: General Characteristics Item Description: C/O COVER PLATE,SEAL CONNECTED TO THE REGULATORS INLET FEMALE FLANGE BY A COUPLING; FITTING TO INTERFACE THE ADAPTER TO THE PNEUMATIC COMPONENT TEST STAND; End Item Identification: B-1B ACFT AGE.. 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.