The Valve,regulating,fuel Oil, cataloged under National Stock Number 4530-00-269-7871, is classified within Federal Supply Class 4530 (Fuel Burning Equipment Units) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4530-00-269-7871 |
| Primary Part Number | HDVF51 |
| Item Name | Valve,regulating,fuel Oil |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Manufacturer | Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 6 |
| Pressure Rating | 300.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM BYPASS INLET LBS |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 10.250 INCHES NOMINAL IN |
| First End Flange Thickness | 0.688 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 5.938 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| First End Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 4.625 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-15083, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| End Connection Quantity | 2 |
| First End Connection Type | PLAIN FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Bypass Flow Rate | 2000.0 POUNDS PER HOUR LBS |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | STEEL UNS J03008 BODY |
| Furnished Items | LEVER HANDLE |
| 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 |
|---|---|
| HDVF51 PRIMARY | Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc (USA) |
| S3587L1 | Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc (USA) |
| Reference | Meaning |
|---|---|
| S3587L1 | 5/9 Secondary reference Automatic Timing and Controls Co Div of Sycon Corp |
| MV150-4000-11R1 | 5/9 Secondary reference Jn&n, Inc. Dba Beco Valves |
| DD445S5501-230 | 5/2 Secondary reference U.S. Government activity |
| DD692S5501-230 | 5/2 Secondary reference U.S. Government activity |
| HDVF51 | 5/9 Secondary reference Automatic Timing and Controls Co Div of Sycon Corp |
NSN 4530-00-269-7871 is a Valve,regulating,fuel Oil, manufactured by Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc, classified under FSC 4530, Fuel Burning Equipment Units. Status: active.
NSN 4530-00-269-7871 has 2 manufacturer part numbers on file: HDVF51 (Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc), S3587L1 (Automatic Timing & Controls, Inc Dba Automatic Timing & Controls Co, Inc Div Automatic Timing and Controls, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4530-00-355-5030. Verify interchangeability with system specifications before substitution.
Key specifications for HDVF51: First End Bolt Hole Quantity: 6; Pressure Rating: 300.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM BYPASS INLET LBS; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 18 specifications are 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.