The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-153-1419, 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 18 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-153-1419 |
| Primary Part Number | 2621-910-01ASSY22A |
| Item Name | Adapter,straight,tube to Boss |
| 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 PREFORMED PACKING |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Nominal Overall Length | 1.375 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE SLEEVE |
| Material Document and Classification | QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 20 ALL ENDS |
| Material | NICKEL ALLOY BODY |
| Material | STEEL SLEEVE |
| Material | STEEL COMP 316 NUT |
| Thread Series Designator | UN ALL ENDS |
| 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 |
|---|---|
| 2621-910-01ASSY22A PRIMARY | Guill Tool & Engineering Co Inc Div Guill Defense (USA) |
| Reference | Meaning |
|---|---|
| 711-4678181 | D/9 Drawing number reference only U.S. Government activity |
| 2621-910-01 | D/9 Drawing number reference only U.S. Government activity |
| 87692-0401F32 | 5/2 Secondary reference U.S. Government activity |
| 711-4678181REVH F32 | 5/2 Secondary reference U.S. Government activity |
| 2621-910-01ASSY22A | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-153-1419 is a Adapter,straight,tube to Boss, manufactured by Guill Tool & Engineering Co Inc Div Guill Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-153-1419 has 1 manufacturer part number on file: 2621-910-01ASSY22A (Guill Tool & Engineering Co Inc Div Guill Defense).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-163-1551, 4730-01-262-0985, 4730-01-333-2916. Verify interchangeability with system specifications before substitution.
Key specifications for 2621-910-01ASSY22A: Furnished Items and Quantity: 1 PREFORMED PACKING; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: FLARELESS (TUBE) FIRST END; Nominal Overall Length: 1.375 INCHES IN. 18 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.