The Reducer,tube, cataloged under National Stock Number 4730-01-081-5732, 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 Sps Technologies, Llc Dba Airdrome Precision Components. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-081-5732 |
| Primary Part Number | AP642T1006 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sps Technologies, Llc Dba Airdrome Precision Components |
| Status | ACTIVE |
| Connection Style | GROOVED INSIDE (TUBE) SECOND END |
| Connection Style | SWIVEL NUT INVERTED FLARE (TUBE) FIRST END |
| Nominal Overall Length | 1.097 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Thread Size | 0.844 INCHES FIRST END IN |
| Seat Angle | 8.5 DEGREES FIRST END |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 18 FIRST END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNJS FIRST 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 |
|---|---|
| AP642T1006 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| MR54027T-1006 | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| GF503BK1006 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| LE273-0031-0003 | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| LE273-0031 | 7/1 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| AE16186-10-6 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AP442T1006 | 5/9 Secondary reference Sps Technologies, Llc Dba Airdrome Precision Components |
| ST7M240T1006 | 5/9 Secondary reference The Boeing Company Div Defense |
| AE16186-1006 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
NSN 4730-01-081-5732 is a Reducer,tube, manufactured by Sps Technologies, Llc Dba Airdrome Precision Components, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-081-5732 has 4 manufacturer part numbers on file: AP642T1006 (Sps Technologies, Llc Dba Airdrome Precision Components), MR54027T-1006 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), GF503BK1006 (Northrop Grumman Systems Corporation), LE273-0031-0003 (The Boeing Company Div Legacy Am&m).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-179-2912, 4730-01-179-5403, 4730-01-179-5406. Verify interchangeability with system specifications before substitution.
Key specifications for AP642T1006: Connection Style: GROOVED INSIDE (TUBE) SECOND END; Connection Style: SWIVEL NUT INVERTED FLARE (TUBE) FIRST END; Nominal Overall Length: 1.097 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE SECOND END. 14 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.