The Disk,rupturable, cataloged under National Stock Number 4820-01-459-5050, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-459-5050 |
| Primary Part Number | 1598AS135-1 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| 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 |
|---|---|
| 1598AS135-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| STA-KUL TYPE 42DV ASSEMBLY NO.6 | Bs&b Safety Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 1598AS135 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 159AS135-1 | C/1 Advisory reference — outside the item-of-supply concept Bs&b Safety Systems Llc |
NSN 4820-01-459-5050 is a Disk,rupturable, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-459-5050 has 2 manufacturer part numbers on file: 1598AS135-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), STA-KUL TYPE 42DV ASSEMBLY NO.6 (Bs&b Safety Systems Llc).
Key specifications for 1598AS135-1: Special Features: 0.500 MPT,1.125 ACROSS FLATS, TOTAL LENGTH 2.125. 0 specifications are 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.