The Cross,boss, cataloged under National Stock Number 4730-00-289-5974, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-289-5974 |
| Item Name | Cross,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Material Document and Classification | QQ-A-225/4 T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-367 T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6 T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6 T851 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Leg Length | 1.734 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 1.625 INCHES ALL ENDS IN |
| Specification/standard Data | 88044-AN937 GOVERNMENT STANDARD AND 81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3B ALL ENDS |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) 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 |
| Reference | Meaning |
|---|---|
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| AN937D20 | 2/2 Government specification standardization U.S. Government activity |
| MIL-F-5509 | 4/1 Identification reference U.S. Government activity |
NSN 4730-00-289-5974 is a Cross,boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-289-5974: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE; Connection Style: GASKET SEAL (BOSS) ALL ENDS; Connection Type: THREADED INTERNAL BOSS ALL ENDS. 13 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.