The Reducer,boss, cataloged under National Stock Number 4730-01-122-2806, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-122-2806 |
| Primary Part Number | 175004 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Corporation Dba Eaton Inoac Div Eaton |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 1.770 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Nominal Thread Size | 1.188 INCHES FIRST END IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNF SECOND END |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 175004 PRIMARY | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
| Reference | Meaning |
|---|---|
| 845-2110231 ITEM 8 1-4IPS | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-122-2806 is a Reducer,boss, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-122-2806 has 1 manufacturer part number on file: 175004 (Eaton Corporation Dba Eaton Inoac Div Eaton).
3 possible matches (shared part number, not a government interchangeability claim): 7510-01-150-7945, 5980-01-160-8810, 6515-01-358-1537. Verify interchangeability with system specifications before substitution.
Key specifications for 175004: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 1.770 INCHES IN; Connection Type: THREADED EXTERNAL BOSS ALL ENDS; Nominal Thread Size: 0.875 INCHES SECOND END IN. 11 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.