The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-374-7121, 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 Honeywell Aerospace Yeovil Div Aerospace -Yeovil. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-374-7121 |
| Primary Part Number | 2688W024 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Honeywell Aerospace Yeovil Div Aerospace -Yeovil |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES SECOND END |
| Flange Face Design | PLAIN SECOND END |
| Surface Treatment Document and Classification | MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment Document and Classification | MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLUNABLE TO DECODE |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Length | 0.260 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 1.080 INCHES SECOND END IN |
| Nominal Overall Length | 1.283 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-A-225/4,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.260 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST END IN |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Bolt Hole Quantity | 2 SECOND END |
| Surface Treatment | LUBRICANT OVERALL |
| Surface Treatment | LUBRICANT OVERALLUNABLE TO DECODE |
| Nominal Width | 2.220 INCHES SECOND END IN |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Nominal Thickness | 0.260 INCHES SECOND END 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 |
|---|---|
| 2688W024 | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR) |
| Reference | Meaning |
|---|---|
| 2688W024 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-374-7121 is a Adapter,straight,flange to Tube, manufactured by Honeywell Aerospace Yeovil Div Aerospace -Yeovil, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-374-7121 has 1 manufacturer part number on file: 2688W024 (Honeywell Aerospace Yeovil Div Aerospace -Yeovil).
Key specifications for 2688W024: Flange Shape: OVAL WITH HOLES SECOND END; Flange Face Design: PLAIN SECOND END; Surface Treatment Document and Classification: MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Surface Treatment Document and Classification: MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLUNABLE TO DECODE. 24 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.