The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-372-6471, 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 Sps Technologies, Llc Dba Airdrome Precision Components. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-372-6471 |
| Primary Part Number | AP391T12 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sps Technologies, Llc Dba Airdrome Precision Components |
| Status | ACTIVE |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.000 INCHES IN |
| Nut Height | 0.306 INCHES NOMINAL IN |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | TITANIUM ALLOY OVERALL |
| Nominal Tube Outside Diameter | 0.750 INCHES IN |
| 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 |
|---|---|
| AP391T12 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| NA7D01T12 PRIMARY | Nelson Aero Space, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 019-10001T12 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| 7D0001 | D/9 Drawing number reference only U.S. Government activity |
| 7D0001T12 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-372-6471 is a Locknut,tube Fitting, manufactured by Sps Technologies, Llc Dba Airdrome Precision Components, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-372-6471 has 2 manufacturer part numbers on file: AP391T12 (Sps Technologies, Llc Dba Airdrome Precision Components), NA7D01T12 (Nelson Aero Space, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-508-7020. Verify interchangeability with system specifications before substitution.
Key specifications for AP391T12: Width Across Flats: 1.250 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.000 INCHES IN. 10 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.