The Valve,bypass, cataloged under National Stock Number 4810-01-186-3119, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Blackwood J. Blackwood & Son Pty Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Valve,bypass |
| FSC / FSG | 4810 — Valves, Powered (FSG 48) |
| Manufacturers | Blackwood J. Blackwood & Son Pty Ltd (CAGE ZD484) |
| Parameter | Value |
|---|---|
| NSN | 4810-01-186-3119 |
| Primary Part Number | 02631154 |
| Item Name | Valve,bypass |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Blackwood J. Blackwood & Son Pty Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 02631154 | Blackwood J. Blackwood & Son Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 10515 ITEM 4 | 3/9 Design control — primary reference Air Dry Co of America, Llc |
| 10515 ITEM 4 | 3/2 Design control — primary reference U.S. Government activity |
| 10515 | D/9 Drawing number reference only Air Dry Co of America, Llc |
| 6181-138 | 5/2 Secondary reference U.S. Government activity |
| 6181-138 | 5/9 Secondary reference Air Dry Co of America, Llc |
NSN 4810-01-186-3119 is a Valve,bypass, manufactured by Blackwood J. Blackwood & Son Pty Ltd, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-186-3119 has 1 manufacturer part number on file: 02631154 (Blackwood J. Blackwood & Son Pty Ltd).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-262-1053. Verify interchangeability with system specifications before substitution.
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.