The Nipple,tube, cataloged under National Stock Number 4730-00-122-3971, 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 Terex Reedrill Dba Reedrill Texoma Div Terex Mining. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-122-3971 |
| Primary Part Number | 16661 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Terex Reedrill Dba Reedrill Texoma Div Terex Mining |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 BULKHEAD NUT AND 2 FERRULE SLEEVE AND 2 SHORT COUPLING NUT |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Nominal Overall Length | 2.219 INCHES IN |
| Style Designator | FLARELESS W/ BULKHEAD THREADS |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Leg Length | 1.438 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.438 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.062 INCHES FIRST END BULKHEAD IN |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES ALL ENDS |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 FIRST END BULKHEAD |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL OVERALL |
| Thread Series Designator | UN ALL ENDS |
| Thread Series Designator | UN FIRST END BULKHEAD |
| 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 |
|---|---|
| 16661 | Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA) |
| Reference | Meaning |
|---|---|
| BA1209-12 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| BA1209-12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-122-3971 is a Nipple,tube, manufactured by Terex Reedrill Dba Reedrill Texoma Div Terex Mining, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-122-3971 has 1 manufacturer part number on file: 16661 (Terex Reedrill Dba Reedrill Texoma Div Terex Mining).
5 possible matches (shared part number, not a government interchangeability claim): 5305-00-987-2558, 3110-01-336-5172, 5330-01-375-5730. Verify interchangeability with system specifications before substitution.
Key specifications for 16661: Furnished Items and Quantity: 1 BULKHEAD NUT AND 2 FERRULE SLEEVE AND 2 SHORT COUPLING NUT; Connection Style: FLARELESS (TUBE) ALL ENDS; Nominal Overall Length: 2.219 INCHES IN; Style Designator: FLARELESS W/ BULKHEAD THREADS. 17 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.