The Valve,gate, cataloged under National Stock Number 4820-00-287-3953, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crane Co Div Valve Div. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-287-3953 |
| Primary Part Number | FIG4901 1-2IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | ACTIVE |
| Features Provided | BONNET PACKING |
| Inlet Relationship with Outlet | IDENTICAL |
| Pressure Class | ERR-060 |
| Stem Type | RISING |
| Material Document and Classification | ASTM A-126 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Thread Series Designator | NPT |
| Material | IRON CAST UNS F12102 BODY |
| Maximum Operating Temp and Media for Which Designed | 450.0 FAHRENHEIT STEAM DEGF |
| Operating Pressure and Type | 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 225.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Connection Type | THREADED INTERNAL PIPE |
| Valve Size | 1.500 INCHES IN |
| Bonnet Attachment Method | U-BOLT |
| Valve Operation Method | MANUAL |
| Bonnet Type | INSIDE SCREW |
| Material Document and Classification | ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Material | COPPER ALLOY SEAT |
| Material | COPPER ALLOY 836 STEM |
| Material | COPPER ALLOY 836 DISK |
| Nominal Thread Size | 1.500 INCHES IN |
| Material Document and Classification | ASTM B-16 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FIG4901 1-2IN PRIMARY | Crane Co Div Valve Div (USA) |
| 16401 1-2IN | Lunkenheimer Co (USA) |
| FIG7091 1-2IN PRIMARY | The Walworth Company (USA) |
| FIG490 | Crane Co Div Valve Div (USA) |
| NO. 490 VALVE N.P.S. 1-1/2 IN. PRIMARY | Crane Co Div Valve Div (USA) |
| 1640 | Lunkenheimer Co (USA) |
NSN 4820-00-287-3953 is a Valve,gate, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-287-3953 has 6 cross-referenced part numbers: FIG4901 1-2IN (Crane Co Div Valve Div), 16401 1-2IN (Lunkenheimer Co), FIG7091 1-2IN (The Walworth Company), FIG490 (Crane Co Div Valve Div), NO. 490 VALVE N.P.S. 1-1/2 IN. (Crane Co Div Valve Div) and 1 more.
There are 12 known substitutes for 4820-00-287-3953: 5935-00-199-0275, 4820-00-287-3952, 4820-00-287-3954 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FIG4901 1-2IN: Features Provided: BONNET PACKING; Inlet Relationship with Outlet: IDENTICAL; Pressure Class: ERR-060; Stem Type: RISING. 20 total characteristics are documented in the Federal Logistics Information System.