The Valve,radiator,heating, cataloged under National Stock Number 4520-00-277-7504, 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 19 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-277-7504 |
| Primary Part Number | A-A-50456 |
| 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 922 BODY |
| Media for Which Designed | STEAM |
| First End Thread Direction | RIGHT-HAND |
| End Connection Quantity | 2 |
| First End Style Designator | PLAIN |
| Body Style | STRAIGHT THRU |
| Flow Control Device | DISK, TOP GUIDED |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Second End Connection Type | THREADED EXTERNAL PIPE |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | PLAIN |
| Valve Operation Method | WHEEL |
| Second End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Connection Type | THREADED INTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Material | COPPER ALLOY 922 STEM |
| Material | COPPER ALLOY 922 FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 922 SEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A-A-50456 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| A-A-50456-1A1 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 600A-ST-1 | Spirax Sarco Inc Dba Spirax Sarco (USA) |
| 102 | Hammond Valve Corp (USA) |
| FIGURE4270 | Crane Co Div Valve Div (USA) |
NSN 4520-00-277-7504 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 4520-00-277-7504 has 5 cross-referenced part numbers: A-A-50456 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-50456-1A1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 600A-ST-1 (Spirax Sarco Inc Dba Spirax Sarco), 102 (Hammond Valve Corp), FIGURE4270 (Crane Co Div Valve Div).
There are 10 known substitutes for 4520-00-277-7504: 4520-00-204-0693, 4520-00-222-3475, 4520-00-222-3476 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-50456: Material: COPPER ALLOY 922 BODY; Media for Which Designed: STEAM; First End Thread Direction: RIGHT-HAND; End Connection Quantity: 2. 19 total characteristics are documented in the Federal Logistics Information System.