The Vent and Drain Assembly, cataloged under National Stock Number 4730-01-164-7872, 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 Derbyshire Machine & Tool Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-164-7872 |
| Primary Part Number | 2621-827-05ASSY42 |
| Item Name | Vent and Drain Assembly |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| General Characteristics Item Description | 0.250 IN. IPS BY 0.438 IN.-20UNF-2B; 700 MAX PSI;BODY-COPPER NICKEL,PLUG HEX W/0.062 IN. VENT HOLE DIA; BRASS CHAIN LINK; BRASS SWIVEL; 2 BRONZE CONNECTORS; NYLON ROPE-3 STRAND 1/8DIAX12LG; O-RING BUNA-N 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 |
|---|---|
| 2621-827-05ASSY42 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 2621-827-05ASSY 42 | 3/2 Design control — primary reference U.S. Government activity |
| 2621-827-05 | D/9 Drawing number reference only U.S. Government activity |
| 300-4684449F67 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-164-7872 is a Vent and Drain Assembly, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-164-7872 has 1 manufacturer part number on file: 2621-827-05ASSY42 (Derbyshire Machine & Tool Co).
Key specifications for 2621-827-05ASSY42: General Characteristics Item Description: 0.250 IN. IPS BY 0.438 IN.-20UNF-2B; 700 MAX PSI;BODY-COPPER NICKEL,PLUG HEX W/0.062 IN. VENT HOLE DIA; BRASS CHAIN LINK; BRASS SWIVEL; 2 BRONZE CONNECTORS; NYLON ROPE-3 STRAND 1/8DIAX12LG; O-RING BUNA-N IN. 1 specification is 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.