The Valve,ball, cataloged under National Stock Number 4820-01-066-4172, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Warfare Center Weapons Div. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-066-4172 |
| Primary Part Number | SS45XF8 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Air Warfare Center Weapons Div |
| Status | ACTIVE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | CROSS |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | PACKING RETAINING |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | STEEL COMP 316 BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE PACKING |
| Material | STEEL COMP 316 SEAT |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 4592488 ITEM 57 | Naval Air Warfare Center Weapons Div (USA) |
| SS45XF8 PRIMARY | Naval Air Warfare Center Weapons Div (USA) |
| 45XF8-SS PRIMARY | Swagelok Co (USA) |
| H810-SS-N-1/2-T | Oyl-Air Specialty Company (USA) |
| 6317805-1 | Naval Sea Systems Command (USA) |
| 4592605 ITEM 12 | Naval Air Warfare Center Weapons Div (USA) |
| Reference | Meaning |
|---|---|
| 6317805-1 | C/1 Advisory reference — outside the item-of-supply concept Whitey Co |
| 45XF8-SS | 5/9 Secondary reference Whitey Co |
NSN 4820-01-066-4172 is a Valve,ball, manufactured by Naval Air Warfare Center Weapons Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-066-4172 has 6 manufacturer part numbers on file: 4592488 ITEM 57 (Naval Air Warfare Center Weapons Div), SS45XF8 (Naval Air Warfare Center Weapons Div), 45XF8-SS (Swagelok Co), H810-SS-N-1/2-T (Oyl-Air Specialty Company), 6317805-1 (Naval Sea Systems Command) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-203-4150. Verify interchangeability with system specifications before substitution.
Key specifications for SS45XF8: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: CROSS; Material Document and Classification: AISI 316 ASSN STD SINGLE MATERIAL RESPONSE SEAT. 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.
NSN 4820-01-066-4172 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.