The Disk,rupturable, cataloged under National Stock Number 4820-00-791-4145, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bs&b Safety Systems Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-791-4145 |
| Primary Part Number | 77-ARE-11-A |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bs&b Safety Systems Llc |
| Status | ACTIVE |
| Burst Pressure | 100.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77-ARE-11-A PRIMARY | Bs&b Safety Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 173142 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Div Aerospace - Torrance |
| PS173142 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| PS173142 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Div Aerospace - Torrance |
| 173142 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 173142 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 173142 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 4820-00-791-4145 is a Disk,rupturable, manufactured by Bs&b Safety Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-791-4145 has 1 manufacturer part number on file: 77-ARE-11-A (Bs&b Safety Systems Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-141-1361, 6750-01-427-1793. Verify interchangeability with system specifications before substitution.
Key specifications for 77-ARE-11-A: Burst Pressure: 100.0 PRESSURE POUNDS PER SQUARE INCH GAGE. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.