The Head,safety,pressure Relief, cataloged under National Stock Number 4820-01-249-3857, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bs&b Safety Systems Llc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-249-3857 |
| Primary Part Number | 77-24-1006-23 |
| Item Name | Head,safety,pressure Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Bs&b Safety Systems Llc |
| Status | ACTIVE |
| End Connection Type | THREADED |
| Burst Pressure | 7925.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| Head Type | SCREW |
| Burst Temperature | 1000.0 FAHRENHEIT DEGF |
| Head Material | STEEL |
| Head Size | 0.500 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SA-12 | Bs&b Safety Systems Llc (USA) |
| 77-24-1006-23 PRIMARY | Bs&b Safety Systems Llc (USA) |
NSN 4820-01-249-3857 is a Head,safety,pressure Relief, manufactured by Bs&b Safety Systems Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-249-3857 has 2 cross-referenced part numbers: SA-12 (Bs&b Safety Systems Llc), 77-24-1006-23 (Bs&b Safety Systems Llc).
There are 7 known substitutes for 4820-01-249-3857: 5120-00-243-1675, 3418-00-498-3912, 6680-00-737-9733 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 77-24-1006-23: End Connection Type: THREADED; Burst Pressure: 7925.0 PRESSURE POUNDS PER SQUARE INCH GAGE; Head Type: SCREW; Burst Temperature: 1000.0 FAHRENHEIT DEGF. 6 total characteristics are documented in the Federal Logistics Information System.