The Valve,safety Relief, cataloged under National Stock Number 4820-01-013-5867, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thales Sa. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-013-5867 |
| Primary Part Number | 91727001 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Thales Sa |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Connection Style | INVERTED FLARE (PIPE) FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | ANGLE |
| Operating Pressure | 12500.0 KILOGRAMS PER SQUARE CENTIMETER MAXIMUM SINGLE RESPONSE KG |
| Features Provided | BONNET PACKING |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Seat Angle | 30.0 DEGREES FIRST END |
| Surface Treatment | PAINT LOCATION NOT OTHERWISE SPECIFIED |
| Bonnet Attachment Method | THREADED |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Material | STEEL BODY |
| Material | STEEL SEAT |
| Thread Series Designator | NPT FIRST END |
| Valve Discharge Flow Rate | 700.0 POUNDS PER HOUR LBS |
| 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 |
|---|---|
| 91727001 | Thales Sa (FRA) |
| V-66 | Enerpac France SAS (FRA) |
| A1070151 | Bae Systems Marine Limited (GBR) |
| 14400005101 | Mbda France (FRA) |
| Reference | Meaning |
|---|---|
| V-66 | 5/9 Secondary reference Enerpac |
| V66 | 3/9 Design control — primary reference Enerpac Tool Group Corp |
NSN 4820-01-013-5867 is a Valve,safety Relief, manufactured by Thales Sa, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-013-5867 has 4 manufacturer part numbers on file: 91727001 (Thales Sa), V-66 (Enerpac France SAS), A1070151 (Bae Systems Marine Limited), 14400005101 (Mbda France).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-438-1549. Verify interchangeability with system specifications before substitution.
Key specifications for 91727001: Flow Control Device: BALL; Connection Style: INVERTED FLARE (PIPE) FIRST END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Style Designator: ANGLE. 18 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.