The Tee,tube to Boss, cataloged under National Stock Number 4730-00-116-6686, 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 Satair A/s. Government technical data includes 18 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through both NSN and commercial part number lookups. 19 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-116-6686 |
| Primary Part Number | MS51529A4 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 FLARED SLEEVE AND 1 LOCKNUT AND 2 SHORT COUPLING NUT AND 1 FLAT WASHER |
| Surface Treatment Document and Classification | QQ-P-416,TYPE2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) THIRD END |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Leg Length | 0.890 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.030 INCHES NOMINAL THIRD END IN |
| Leg Length | 0.890 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES SECOND END |
| Specification/standard Data | 96906-MS51529 GOVERNMENT STANDARD |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| MS51529A4 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| 10086121 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MS51529A4 | 5/9 Secondary reference Imperial |
| MS51529A4 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| MS51529A4 | 5/9 Secondary reference U.S. Government activity |
| 203003-4-4S | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
| 4S5BX-S | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| 4730001166686 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 4S5BX-S | 5/9 Secondary reference U.S. Government activity |
| MS51529B4 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MS51529A4 | 5/1 Secondary reference U.S. Government activity |
| MS51529A4 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| MS51529A4 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| MS51529A4 | 5/1 Secondary reference Air-Way Manufacturing Company |
| MS51529A4 | C/1 Advisory reference — outside the item-of-supply concept Danfoss Power Solutions II, Llc |
| 4S5X-S | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4S5BXS | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| MS51529A4 | 5/9 Secondary reference U.S. Government activity |
| MS51529A4 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
NSN 4730-00-116-6686 is a Tee,tube to Boss, manufactured by Satair A/s, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-116-6686 has 1 manufacturer part number on file: MS51529A4 (Satair A/s).
Key specifications for MS51529A4: Furnished Items and Quantity: 2 FLARED SLEEVE AND 1 LOCKNUT AND 2 SHORT COUPLING NUT AND 1 FLAT WASHER; Surface Treatment Document and Classification: QQ-P-416,TYPE2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) SECOND END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) THIRD END. 18 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.