The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-126-4854, 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 Guill Tool & Engineering Co Inc Div Guill Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-126-4854 |
| Primary Part Number | 2621-910-01 ASSY 33 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Guill Tool & Engineering Co Inc Div Guill Defense |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 TUBE COUPLING NUT W/SLEEVE |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Connection Style | SOCKET (PIPE) SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Nominal Overall Length | 2.380 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED INTERNAL PIPE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 5100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Thread Class | 2A FIRST END A |
| Material | COPPER ALLOY BODY |
| Material | STEEL COMP 630 NUT |
| Material | STEEL COMP 316 SLEEVE |
| Thread Series Designator | UNF FIRST 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 |
|---|---|
| 2621-910-01 ASSY 33 PRIMARY | Guill Tool & Engineering Co Inc Div Guill Defense (USA) |
| Reference | Meaning |
|---|---|
| 300-4684449F56 | 5/2 Secondary reference U.S. Government activity |
| 502-4675951 F34 | 5/2 Secondary reference U.S. Government activity |
| 509-4676111 REV C F10 | 5/1 Secondary reference U.S. Government activity |
| 516-4788350 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 704-4685402F25 | 5/2 Secondary reference U.S. Government activity |
| 4686239 F21 | 5/2 Secondary reference U.S. Government activity |
| 704-4685402 | D/9 Drawing number reference only U.S. Government activity |
| 2621-910-01 | D/9 Drawing number reference only U.S. Government activity |
| 2621-910-01 ASSEMBLY 33 | 3/2 Design control — primary reference U.S. Government activity |
| 300-4684449 | D/9 Drawing number reference only U.S. Government activity |
| 513-4684085 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 87865-1591 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-126-4854 is a Adapter,straight,pipe to Tube, manufactured by Guill Tool & Engineering Co Inc Div Guill Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-126-4854 has 1 manufacturer part number on file: 2621-910-01 ASSY 33 (Guill Tool & Engineering Co Inc Div Guill Defense).
9 possible matches (shared part number, not a government interchangeability claim): 4730-01-136-7484, 4730-01-146-0060, 4730-01-153-1419. Verify interchangeability with system specifications before substitution.
Key specifications for 2621-910-01 ASSY 33: Furnished Items and Quantity: 1 TUBE COUPLING NUT W/SLEEVE; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Connection Style: SOCKET (PIPE) SECOND END; Connection Style: FLARELESS (TUBE) FIRST END. 16 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.