The Valve,by-Pass, cataloged under National Stock Number 4820-01-122-4018, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cepeda Associates, Inc. Dba Cepeda Associates Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-122-4018 |
| Primary Part Number | 1034-D240 |
| Item Name | Valve,by-Pass |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cepeda Associates, Inc. Dba Cepeda Associates Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF FLAT 7; PLAYE 1; ROUND 2; TUBE 2; PIN SPRING 2 |
| 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 |
|---|---|
| 1034-D240 PRIMARY | Cepeda Associates, Inc. Dba Cepeda Associates Inc (USA) |
| Reference | Meaning |
|---|---|
| D5000-545-04 | D/9 Drawing number reference only U.S. Government activity |
| D5180-545-07 | 3/2 Design control — primary reference U.S. Government activity |
| D5000-545-04 ITEM 49 | 5/2 Secondary reference U.S. Government activity |
| D5180-545-07 | C/1 Advisory reference — outside the item-of-supply concept Cepeda Associates, Inc. Dba Cepeda Associates Inc |
NSN 4820-01-122-4018 is a Valve,by-Pass, manufactured by Cepeda Associates, Inc. Dba Cepeda Associates Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-122-4018 has 1 manufacturer part number on file: 1034-D240 (Cepeda Associates, Inc. Dba Cepeda Associates Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4460-01-122-4389, 4710-01-122-5210, 5340-01-122-5833. Verify interchangeability with system specifications before substitution.
Key specifications for 1034-D240: General Characteristics Item Description: CONSISTS OF FLAT 7; PLAYE 1; ROUND 2; TUBE 2; PIN SPRING 2. 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.