The Valve,flow Control, cataloged under National Stock Number 4820-00-404-5648, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-404-5648 |
| Primary Part Number | SS45X58 |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SS45X58 PRIMARY | Swagelok Co (USA) |
| 8Z-B8XJ-SSP | Parker-Hannifin Corp Div Instrumentation Products Division (USA) |
| Reference | Meaning |
|---|---|
| SS45X58 | 5/9 Secondary reference Whitey Co |
| 45XS8-316 | 5/9 Secondary reference Whitey Co |
| SS45XS8 | 5/9 Secondary reference Whitey Co |
NSN 4820-00-404-5648 is a Valve,flow Control, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-404-5648 has 2 manufacturer part numbers on file: SS45X58 (Swagelok Co), 8Z-B8XJ-SSP (Parker-Hannifin Corp Div Instrumentation Products Division).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-524-6838. Verify interchangeability with system specifications before substitution.
Key specifications for SS45X58: Special Features: 3 WAY BALL VALVE FOR SWITCHING SERVICE;STAINLESS STEEL COMPOSITION 316 FOR BODY AND STEM;1500 PSI MAX OPERATING PRESSURE;3 PORTS 1/2-20 UNF THD W/SWAGELOK NUTS,T STYLE VALVE,PANEL MTG; End Item Identification: AN/ALQ-119. 0 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.
NSN 4820-00-404-5648 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.