The Valve,radiator,heating, cataloged under National Stock Number 4520-00-720-4735, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-720-4735 |
| Primary Part Number | A-A-50457 |
| Item Name | Valve,radiator,heating |
| FSC / FSG | 4520 / 45 — No Item Name Available |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Material | COPPER ALLOY STEM |
| Material | COPPER ALLOY 922 AND COPPER ALLOY 836 SEAT |
| Second End Thread Series Designator | NPT |
| Second End Thread Direction | RIGHT-HAND |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Second End Relationship with First End | NOT IDENTICAL |
| End Connection Quantity | 2 |
| First End Thread Series Designator | NPT |
| First End Style Designator | PLAIN |
| First End Thread Direction | RIGHT-HAND |
| Second End Style Designator | PLAIN |
| First End Connection Type | THREADED INTERNAL PIPE |
| Valve Operation Method | WHEEL |
| Flow Control Device | DISK, TOP GUIDED |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Second End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Second End Connection Type | THREADED EXTERNAL PIPE |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| Material | COPPER ALLOY 922 AND COPPER ALLOY 836 BODY |
| Media for Which Designed | STEAM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A-A-50457 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| WW-V-160 TY2STDCL125SZ1/2-SERV 1 | General Services Administration Federal Supply Service (USA) |
| A-A-50457-2A | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| R100A1-2 | Desco Corp Marsh Bellofram Div (USA) |
| WW-V-160 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 4520-00-720-4735 is a Valve,radiator,heating, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4520 (No Item Name Available). Status: active.
NSN 4520-00-720-4735 has 5 cross-referenced part numbers: A-A-50457 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), WW-V-160 TY2STDCL125SZ1/2-SERV 1 (General Services Administration Federal Supply Service), A-A-50457-2A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), R100A1-2 (Desco Corp Marsh Bellofram Div), WW-V-160 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 4520-00-720-4735: 4520-00-204-0693, 4520-00-222-3475, 4520-00-222-3476 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-50457: Material: COPPER ALLOY STEM; Material: COPPER ALLOY 922 AND COPPER ALLOY 836 SEAT; Second End Thread Series Designator: NPT; Second End Thread Direction: RIGHT-HAND. 21 total characteristics are documented in the Federal Logistics Information System.