The Valve,safety Relief, cataloged under National Stock Number 4820-00-014-2696, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-014-2696 |
| Primary Part Number | 2271439-003 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Flow Control Device | STEM OR DISK |
| Connection Style | PLAIN (PIPE) FIRST END |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-A-225/5,ALLOY2017,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,ALLOY2024,T4 FED SPEC 2ND MATERIAL RESPONSE BODY |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.125 INCHES FIRST END IN |
| Disk Loading Method | SPRING |
| Material | ALUMINUM ALLOY 2017 OR ALUMINUM ALLOY 2024 BODY |
| Thread Series Designator | NPT FIRST END |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 2271439-003 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 559A-1M-30 | 3/2 Design control — primary reference U.S. Government activity |
| 1A030-3 | 5/9 Secondary reference U.S. Government activity |
| 1093438-3 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 4820-00-014-2696 is a Valve,safety Relief, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-014-2696 has 1 manufacturer part number on file: 2271439-003 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 6680-00-754-4112. Verify interchangeability with system specifications before substitution.
Key specifications for 2271439-003: Flow Control Device: STEM OR DISK; Connection Style: PLAIN (PIPE) FIRST END; Style Designator: STRAIGHT THRU; Material Document and Classification: QQ-A-225/5,ALLOY2017,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,ALLOY2024,T4 FED SPEC 2ND MATERIAL RESPONSE BODY. 10 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.