The Nipple,tube, cataloged under National Stock Number 4730-00-278-3217, 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 Cme Arma, Inc. Dba Cme Arma Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-278-3217 |
| Primary Part Number | 504387 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cme Arma, Inc. Dba Cme Arma Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 FLARED SLEEVE AND 2 SHORT COUPLING NUT |
| Connection Style | INVERTED FLARE (TUBE) ALL ENDS |
| Nominal Overall Length | 1.437 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | FLARELESS W/ CENTER WRENCHING FACILITY |
| Material Document and Classification | QQ-B-626,COMP 22,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.812 INCHES ALL ENDS IN |
| Seat Angle | 20.000 DEGREES ALL ENDS |
| Departure From Cited Designator | AS DIFFERENTIATED BY FURNISHED ITEMS |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 1.8 ALL ENDS |
| Material | COPPER ALLOY 360 OVERALL |
| Thread Series Designator | UNS 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 |
|---|---|
| 504387 PRIMARY | Cme Arma, Inc. Dba Cme Arma Inc (USA) |
| Reference | Meaning |
|---|---|
| 4730002783217 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 504387 | 5/9 Secondary reference Army Weapons Command Attn Amswe-Ree-S |
NSN 4730-00-278-3217 is a Nipple,tube, manufactured by Cme Arma, Inc. Dba Cme Arma Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-278-3217 has 1 manufacturer part number on file: 504387 (Cme Arma, Inc. Dba Cme Arma Inc).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-429-4251. Verify interchangeability with system specifications before substitution.
Key specifications for 504387: Furnished Items and Quantity: 2 FLARED SLEEVE AND 2 SHORT COUPLING NUT; Connection Style: INVERTED FLARE (TUBE) ALL ENDS; Nominal Overall Length: 1.437 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 14 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.