The Vent Unit,relief, cataloged under National Stock Number 4930-01-471-2958, is classified within Federal Supply Class 4930 (Lubrication and Fuel Dispensing Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Betts Industries, Inc.. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4930-01-471-2958 |
| Primary Part Number | 6238-ALB |
| Item Name | Vent Unit,relief |
| FSC / FSG | 4930 / 49 — Lubrication and Fuel Dispensing Equipment |
| Manufacturer | Betts Industries, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | 1-5/8 IN. THREADS; W/BUNA SEALS IN |
| Material | ALUMINUM |
| 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 |
|---|---|
| 6238-ALB PRIMARY | Betts Industries, Inc. (USA) |
NSN 4930-01-471-2958 is a Vent Unit,relief, manufactured by Betts Industries, Inc., classified under FSC 4930, Lubrication and Fuel Dispensing Equipment. Status: active.
NSN 4930-01-471-2958 has 1 manufacturer part number on file: 6238-ALB (Betts Industries, Inc.).
Key specifications for 6238-ALB: General Characteristics Item Description: 1-5/8 IN. THREADS; W/BUNA SEALS IN; Material: ALUMINUM. 2 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.