The Stem,fluid Valve, cataloged under National Stock Number 4820-01-133-0246, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-133-0246 |
| Primary Part Number | E26631-17500-00 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Largest Outside Diameter | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | ASTM-A-276 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 316 |
| 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 |
|---|---|
| E26631-17500-00 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2620-925X2PIECE4 3-4IN | 3/2 Design control — primary reference U.S. Government activity |
| SS845-1889567 | D/9 Drawing number reference only U.S. Government activity |
| 2620-925X2PIECE4 3-4IN | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| 2620-925X2 PC34/4 IN. | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| 2620-925X2PIECE4 | 5/9 Secondary reference U.S. Government activity |
| SS845-1889567PIECE4 3-4IN | 5/2 Secondary reference U.S. Government activity |
| 2620-925X2 | D/9 Drawing number reference only U.S. Government activity |
| 2620-925X2PIECE4 | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
NSN 4820-01-133-0246 is a Stem,fluid Valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-133-0246 has 1 manufacturer part number on file: E26631-17500-00 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-236-2775, 4820-01-237-6471, 4820-01-541-4658. Verify interchangeability with system specifications before substitution.
Key specifications for E26631-17500-00: Largest Outside Diameter: 0.500 INCHES NOMINAL IN; Material Document and Classification: ASTM-A-276 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 6.207 INCHES NOMINAL IN; Material: STEEL COMP 316. 3 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.