The Diaphragm,valve,flat, cataloged under National Stock Number 4810-01-220-4194, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Bellofram Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-220-4194 |
| Primary Part Number | 27328503 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Temp Rating | 600.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 1.812 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Document and Classification | MIL-STD-417, TYPE T, CLASS TA, GRADE 805 FED STD SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.030 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 1.500 INCHES NOMINAL IN |
| Center Hole Diameter | 0.190 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| Outside Corner Radius | 0.190 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 0.140 INCHES NOMINAL 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 |
|---|---|
| 27328503 PRIMARY | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| 27328503 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4810-01-220-4194 is a Diaphragm,valve,flat, manufactured by Bellofram Corporation, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-220-4194 has 1 manufacturer part number on file: 27328503 (Bellofram Corporation).
Key specifications for 27328503: Temp Rating: 600.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 1.812 INCHES NOMINAL IN; Style Designator: FLAT; Material Document and Classification: MIL-STD-417, TYPE T, CLASS TA, GRADE 805 FED STD SINGLE MATERIAL RESPONSE. 12 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.