The Trap,steam, cataloged under National Stock Number 4730-00-989-1833, 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 Itt Fluid Technology Corp Itt Mcdonnell and Miller. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-989-1833 |
| Primary Part Number | 600B 3/4 |
| Item Name | Trap,steam |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Itt Fluid Technology Corp Itt Mcdonnell and Miller |
| Status | ACTIVE |
| Design Type | INVERTED BUCKET |
| Inlet Connection Type | FEMALE IRON PIPE |
| Thread Direction | RIGHT-HAND BOTH INLET AND OUTLET |
| Maximum Steam Working Pressure | ERR-060 |
| Screw Thread Series Designator | NPT BOTH INLET AND OUTLET |
| Body Design | STRAIGHT PATTERN |
| Material | IRON CAST BODY |
| Material | STEEL CORROSION RESISTING WORKING PARTS |
| Outlet Connection Type | FEMALE IRON PIPE |
| 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 |
|---|---|
| 600B 3/4 PRIMARY | Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA) |
| 811 3-4IN PRIMARY | Armstrong International Inc Dba Armstrong Machine Works (USA) |
| Reference | Meaning |
|---|---|
| 811IB3-4 | 5/9 Secondary reference Armstrong International Inc Dba Armstrong Machine Works |
| 60DR 3/4 IN | 5/9 Secondary reference The Clark-Eliance Corp |
| 600B 3/4 | 5/9 Secondary reference Saran Protective Coatings Co |
NSN 4730-00-989-1833 is a Trap,steam, manufactured by Itt Fluid Technology Corp Itt Mcdonnell and Miller, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-989-1833 has 2 manufacturer part numbers on file: 600B 3/4 (Itt Fluid Technology Corp Itt Mcdonnell and Miller), 811 3-4IN (Armstrong International Inc Dba Armstrong Machine Works).
1 possible match (shared part number, not a government interchangeability claim): 7510-01-203-4663. Verify interchangeability with system specifications before substitution.
Key specifications for 600B 3/4: Design Type: INVERTED BUCKET; Inlet Connection Type: FEMALE IRON PIPE; Thread Direction: RIGHT-HAND BOTH INLET AND OUTLET; Maximum Steam Working Pressure: ERR-060. 9 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.