The Sleeve,deck and Bulkhead Connect, cataloged under National Stock Number 4730-01-314-8856, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-314-8856 |
| Primary Part Number | 1856518 ASSY 99 |
| Item Name | Sleeve,deck and Bulkhead Connect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| General Characteristics Item Description | AL MATL; 0.250 IN. IPS,0.540 IN. OD 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 |
|---|---|
| 1856518 ASSY 99 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 1856518 ASSY 99 | 5/9 Secondary reference Mindeco Corp |
| 1856518K AY99 AL1/4INIPS | 5/9 Secondary reference Kilsby-Roberts Co |
| 1856518 | D/9 Drawing number reference only U.S. Government activity |
| 1856518K AY99 AL1/4INIPS | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-314-8856 is a Sleeve,deck and Bulkhead Connect, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-314-8856 has 1 manufacturer part number on file: 1856518 ASSY 99 (Derbyshire Machine & Tool Co).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-314-8857, 4730-01-319-2876. Verify interchangeability with system specifications before substitution.
Key specifications for 1856518 ASSY 99: General Characteristics Item Description: AL MATL; 0.250 IN. IPS,0.540 IN. OD 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.