The Seat,valve, cataloged under National Stock Number 4810-00-308-2887, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Ingersoll-Rand Company Dba Rotary Compressor Division. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-308-2887 |
| Primary Part Number | UF1-38 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Ingersoll-Rand Company Dba Rotary Compressor Division |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.156 INCHES NOMINAL IN |
| Flange Diameter | 1.250 INCHES NOMINAL IN |
| Body Outside Diameter | 0.687 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.375 INCHES NOMINAL IN |
| Under Flange Height | 0.312 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| UF1-38 PRIMARY | Ingersoll-Rand Company Dba Rotary Compressor Division (USA) |
| Reference | Meaning |
|---|---|
| 35237031 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| UF1-38 | 5/9 Secondary reference Ingersoll Rand Co |
| UF1-38 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-00-308-2887 is a Seat,valve, manufactured by Ingersoll-Rand Company Dba Rotary Compressor Division, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-308-2887 has 1 manufacturer part number on file: UF1-38 (Ingersoll-Rand Company Dba Rotary Compressor Division).
Key specifications for UF1-38: Flange Seat to Disk End Height: 0.156 INCHES NOMINAL IN; Flange Diameter: 1.250 INCHES NOMINAL IN; Body Outside Diameter: 0.687 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 8 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.