The Valve,ball, cataloged under National Stock Number 4820-01-575-7771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is American Stainless & Supply Llc Dba Industrial Management of Materials of the Carolinas, Llc, Ch. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-575-7771 |
| Primary Part Number | 1/4" 5303 6 SW |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | American Stainless & Supply Llc Dba Industrial Management of Materials of the Carolinas, Llc, Ch |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.250 INCHES IN |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Face to Face Distance | 2.520 INCHES IN |
| Material | STEEL COMP 316 BODY |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 555-8313751 NO. 17 SHT 2 | Naval Sea Systems Command (USA) |
| 1/4" 5303 6 SW PRIMARY | American Stainless & Supply Llc Dba Industrial Management of Materials of the Carolinas, Llc, Ch (USA) |
| Reference | Meaning |
|---|---|
| 8313751 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-575-7771 is a Valve,ball, manufactured by American Stainless & Supply Llc Dba Industrial Management of Materials of the Carolinas, Llc, Ch, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-575-7771 has 2 manufacturer part numbers on file: 555-8313751 NO. 17 SHT 2 (Naval Sea Systems Command), 1/4" 5303 6 SW (American Stainless & Supply Llc Dba Industrial Management of Materials of the Carolinas, Llc, Ch).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-575-7804, 5330-01-616-2604. Verify interchangeability with system specifications before substitution.
Key specifications for 1/4" 5303 6 SW: Furnished Items and Quantity: 1 HANDLE; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 9 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.