The Seat,valve, cataloged under National Stock Number 4810-00-342-0483, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-342-0483 |
| Primary Part Number | 01T135-113 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Falls Filtration Technologies, Inc. |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.184 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Flange Diameter | 0.493 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN |
| FSC Application Data | ACFT CONSTANT SPEED ALTERNATOR DRIVE HYDRAULIC OIL FILTER |
| Body Outside Diameter | 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| Seal Accommodation Type | RECESSED |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Under Flange Height | 0.082 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 BODY |
| 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 |
|---|---|
| 01T135-113 PRIMARY | Falls Filtration Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 28189 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4810-00-342-0483 is a Seat,valve, manufactured by Falls Filtration Technologies, Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-342-0483 has 1 manufacturer part number on file: 01T135-113 (Falls Filtration Technologies, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 3020-00-355-2561, 5330-01-038-4713, 3455-01-229-1905. Verify interchangeability with system specifications before substitution.
Key specifications for 01T135-113: Flange Seat to Disk End Height: 0.184 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Flange Diameter: 0.493 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN; FSC Application Data: ACFT CONSTANT SPEED ALTERNATOR DRIVE HYDRAULIC OIL FILTER; Body Outside Diameter: 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN. 11 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.