The Valve,safety Relief, cataloged under National Stock Number 4820-01-267-0274, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-267-0274 |
| Primary Part Number | NMP-1108 OPT B |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | CANCELLED |
| Nominal Outside Diameter | 3.875 INCHES ALL ENDS IN |
| Style Designator | ANGLE FLANGED ENDS |
| Valve Size | 0.750 INCHES IN |
| Bolt Hole Nominal Diameter | 0.625 INCHES ALL ENDS IN |
| First Connection Face to Centerline Distance | 3.000 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Bolt Hole Quantity | 4 ALL ENDS |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Bonnet Attachment Method | UNION |
| Flange Face Design | PLAIN ALL ENDS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING STEM |
| Bolt Circle Nominal Diameter | 2.750 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Adjustable Pressure Range | +160.0 TO 180.0 POUNDS PER SQUARE INCH LBS |
| Disk Loading Method | SPRING |
| Second Connection Face to Centerline Distance | 3.000 INCHES IN |
| Bonnet Type | INSIDE SPRING |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Nominal Thickness | 0.344 INCHES ALL ENDS IN |
| Maximum Operating Temp | 15.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B2053S3/4INRNG141T0190 | Kunkle Industries Inc Lonergan Valve Div (USA) |
| NMP-1108 DL0-10D-B1 160TO180PSI | Kunkle Industries Inc Lonergan Valve Div (USA) |
| NMP-1108 OPT B PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| B2053S | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 3/4 BY 3/4 MODEL T FLANGEDB16.24 | Kunkle Industries Inc Lonergan Valve Div (USA) |
| NMP-1108 OPT B | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| NMP-1108 OPT B | Kunkle Industries Inc Lonergan Valve Div (USA) |
| 3/4X3/4 DL0-10D/B1 160-180PSI | Kunkle Industries Inc Lonergan Valve Div (USA) |
| DLO-10D/B1 OPT.B 160T180 | Kunkle Industries Inc Lonergan Valve Div (USA) |
| NMP-1108 | Kunkle Industries Inc Lonergan Valve Div (USA) |
| NMP-1108 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| B2053S | Kunkle Industries Inc Lonergan Valve Div (USA) |
| DLO-10D/B1 0PT. | Kunkle Industries Inc Lonergan Valve Div (USA) |
| BASKK08SDD PRIMARY | Dante Valve Company (USA) |
| BASKK08SDD | Danco Valve Company (USA) |
NSN 4820-01-267-0274 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-267-0274 has 15 cross-referenced part numbers: B2053S3/4INRNG141T0190 (Kunkle Industries Inc Lonergan Valve Div), NMP-1108 DL0-10D-B1 160TO180PSI (Kunkle Industries Inc Lonergan Valve Div), NMP-1108 OPT B (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), B2053S (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 3/4 BY 3/4 MODEL T FLANGEDB16.24 (Kunkle Industries Inc Lonergan Valve Div) and 10 more.
There are 12 known substitutes for 4820-01-267-0274: 4820-01-034-1345, 4820-01-034-2073, 4820-01-107-4662 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for NMP-1108 OPT B: Nominal Outside Diameter: 3.875 INCHES ALL ENDS IN; Style Designator: ANGLE FLANGED ENDS; Valve Size: 0.750 INCHES IN; Bolt Hole Nominal Diameter: 0.625 INCHES ALL ENDS IN. 25 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-267-0274 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.