The Nipple,tube, cataloged under National Stock Number 4730-01-312-5710, 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 Bae Systems Hagglunds Aktiebolag. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-312-5710 |
| Primary Part Number | 25212163-081 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Bae Systems Hagglunds Aktiebolag |
| Status | ACTIVE |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Style Designator | FLARED AND FLARELESS W/ CENTER WRENCHING FACILITY |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES SECOND END IN |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 12.0 DEGREES SECOND END |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A SECOND END A |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF SECOND END |
| 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 |
|---|---|
| 25212163-081 PRIMARY | Bae Systems Hagglunds Aktiebolag (SWE) |
| 25212163-081 | Amz Alabama Inc. (USA) |
| 91011-991 | Bae Systems Hagglunds Aktiebolag (SWE) |
| Reference | Meaning |
|---|---|
| 91011-991 | 5/9 Secondary reference U.s. Defense Services, Inc. Dba Usds |
| 25212163-081 | 3/9 Design control — primary reference Bae Systems Hagglunds Ab |
| 91011-991 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 25212163-081 | 5/9 Secondary reference U.s. Defense Services, Inc. Dba Usds |
NSN 4730-01-312-5710 is a Nipple,tube, manufactured by Bae Systems Hagglunds Aktiebolag, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-312-5710 has 3 manufacturer part numbers on file: 25212163-081 (Bae Systems Hagglunds Aktiebolag), 25212163-081 (Amz Alabama Inc.), 91011-991 (Bae Systems Hagglunds Aktiebolag).
Key specifications for 25212163-081: Connection Style: FLARELESS (TUBE) SECOND END; Connection Style: FLARELESS (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Connection Type: THREADED EXTERNAL TUBE SECOND END. 15 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.