The Nipple,tube, cataloged under National Stock Number 4730-01-265-6052, 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 Swagelok Co. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-265-6052 |
| Primary Part Number | B-400-6N |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 FERRULE SLEEVE AND 2 KNURLED SHORT COUPLING NUT |
| FSC Application Data | INSTRUMENTATION AND PROCESS TUBING |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Nominal Overall Length | 1.031 INCHES IN |
| Criticality Code Justification | TMQY |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | ASTM B124 ASSN STD SINGLE MATERIAL RESPONSE OR SAE J461,UNS C37700 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE OR SAE J461,UNS C36000 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | NYLON MFR REF SINGLE MATERIAL RESPONSE SLEEVE |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 20.0 DEGREES ALL ENDS |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Material | COPPER ALLOY 377 BODY |
| Material | COPPER ALLOY 360 NUT |
| Material | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE SLEEVE |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| B-400-6N PRIMARY | Swagelok Co (USA) |
NSN 4730-01-265-6052 is a Nipple,tube, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-265-6052 has 1 manufacturer part number on file: B-400-6N (Swagelok Co).
Key specifications for B-400-6N: Furnished Items and Quantity: 2 FERRULE SLEEVE AND 2 KNURLED SHORT COUPLING NUT; FSC Application Data: INSTRUMENTATION AND PROCESS TUBING; Connection Style: FLARELESS (TUBE) ALL ENDS; Nominal Overall Length: 1.031 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.