The Seat,valve, cataloged under National Stock Number 4810-00-995-6938, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Falls Filtration Technologies, Inc.. Government technical data includes 10 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 | 4810-00-995-6938 |
| Primary Part Number | 01W157-213 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Falls Filtration Technologies, Inc. |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Flange Diameter | 0.862 INCHES MINIMUM AND 0.867 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN |
| Seal Accommodation Type | GROOVED |
| Material Document and Classification | SAE30303 ASSN STD SINGLE MATERIAL RESPONSE OR AISI303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.528 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN |
| Under Flange Height | 0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 OVERALL |
| Seat Angle in Deg | 59.000 MINIMUM AND 61.000 MAXIMUM |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 01W157-213 PRIMARY | Falls Filtration Technologies, Inc. (USA) |
NSN 4810-00-995-6938 is a Seat,valve, manufactured by Falls Filtration Technologies, Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-995-6938 has 1 manufacturer part number on file: 01W157-213 (Falls Filtration Technologies, Inc.).
Key specifications for 01W157-213: Flange Seat to Disk End Height: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Flange Diameter: 0.862 INCHES MINIMUM AND 0.867 INCHES MAXIMUM IN; Body Outside Diameter: 0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN; Seal Accommodation Type: GROOVED. 10 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.