The Valve,emergency, cataloged under National Stock Number 4820-01-067-6071, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Betts Industries, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-067-6071 |
| Primary Part Number | EV46671ALB |
| Item Name | Valve,emergency |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Betts Industries, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | BODY MATERIAL ALUMINUM; FLANGED OUTLET INSIDE DIA 3.062; O.D. 5.625; BOLT CIRCLE 4.875; 8 BOLT HOLES,0.438 IN. DIA EA;INLET FLANGE; INSIDE DIA 3.375; OUTSIDE DIA IS HEX; BOLT CIRCLE 6.250; 6 BOLT HOLES,0.562 IN. DIA EA IN |
| 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 |
|---|---|
| EV46671ALB PRIMARY | Betts Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A41031-F | 5/9 Secondary reference Allegheny Ludlum Corporation |
NSN 4820-01-067-6071 is a Valve,emergency, manufactured by Betts Industries, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-067-6071 has 1 manufacturer part number on file: EV46671ALB (Betts Industries, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-364-1536. Verify interchangeability with system specifications before substitution.
Key specifications for EV46671ALB: General Characteristics Item Description: BODY MATERIAL ALUMINUM; FLANGED OUTLET INSIDE DIA 3.062; O.D. 5.625; BOLT CIRCLE 4.875; 8 BOLT HOLES,0.438 IN. DIA EA;INLET FLANGE; INSIDE DIA 3.375; OUTSIDE DIA IS HEX; BOLT CIRCLE 6.250; 6 BOLT HOLES,0.562 IN. DIA EA IN; End Item Identification: PORTABLE JET ENGINE TEST STAND COMP. A/M37T-20 AND -21. 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.