The Nipple,tube, cataloged under National Stock Number 4730-00-756-1052, 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 Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-756-1052 |
| Primary Part Number | 26985 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Triumph Thermal Systems - Maryland, Inc. |
| 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 | FLARED (TUBE) ALL ENDS |
| Nominal Overall Length | 1.828 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | FLARED W/ CENTER WRENCHING FACILITY |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A ALL ENDS A |
| Material | ALUMINUM ALLOY 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 |
|---|---|
| CS4730-0028 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| 26985 PRIMARY | Triumph Thermal Systems - Maryland, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 8497-175-3 | 3/2 Design control — primary reference U.S. Government activity |
| 5PS781 | 5/2 Secondary reference U.S. Government activity |
| D8497-175-3 | 3/2 Design control — primary reference U.S. Government activity |
| 8497-175-3 | 3/2 Design control — primary reference U.S. Government activity |
| D8497-175-3 | 3/2 Design control — primary reference U.S. Government activity |
| D8497-175-3 | 5/9 Secondary reference U.S. Government activity |
| D8497-175-3 | 5/9 Secondary reference Drs Environmental Systems Inc |
| D8497-175-3 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-00-756-1052 is a Nipple,tube, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-756-1052 has 2 manufacturer part numbers on file: CS4730-0028 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), 26985 (Triumph Thermal Systems - Maryland, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5930-00-821-5390, 5120-00-935-4545. Verify interchangeability with system specifications before substitution.
Key specifications for 26985: 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: FLARED (TUBE) ALL ENDS; Nominal Overall Length: 1.828 INCHES IN. 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.