The Sleeve,deck and Bulkhead Connect, cataloged under National Stock Number 4730-01-314-8857, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-314-8857 |
| Primary Part Number | 1856518 ASSY 97 |
| 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 | 0.500 IN. IPS,0.840 IN. OD; AL MATL 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 97 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 1856518K AY97 AL1/2INIPS | 5/9 Secondary reference U.S. Government activity |
| 1856518 | D/9 Drawing number reference only U.S. Government activity |
| 1856518 AY97 AL1/2INIPS | 5/9 Secondary reference Kilsby-Roberts Co |
NSN 4730-01-314-8857 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 4730-01-314-8857 has 1 manufacturer part number on file: 1856518 ASSY 97 (Derbyshire Machine & Tool Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-319-2876. Verify interchangeability with system specifications before substitution.
Key specifications for 1856518 ASSY 97: General Characteristics Item Description: 0.500 IN. IPS,0.840 IN. OD; AL MATL 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.