The Pilot,valve Seat Refacing, cataloged under National Stock Number 4910-01-439-2986, is classified within Federal Supply Class 4910 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Sioux Tools Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4910-01-439-2986 |
| Primary Part Number | E312 |
| Item Name | Pilot,valve Seat Refacing |
| FSC / FSG | 4910 / 49 — No Item Name Available |
| Manufacturer | Sioux Tools Inc |
| Status | ACTIVE |
| Design Type | EXPANDING |
| Size | 0.3125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| NO. 1726 ITEM 28 | Sioux Tools Inc (USA) |
| E312 PRIMARY | Sioux Tools Inc (USA) |
NSN 4910-01-439-2986 is a Pilot,valve Seat Refacing, manufactured by Sioux Tools Inc, classified under FSC 4910 (No Item Name Available). Status: active.
NSN 4910-01-439-2986 has 2 cross-referenced part numbers: NO. 1726 ITEM 28 (Sioux Tools Inc), E312 (Sioux Tools Inc).
There are 3 known substitutes for 4910-01-439-2986: 5120-00-180-1016, 3611-00-307-2870, 4130-01-539-2201. Verify interchangeability with system specifications before substitution.
Key specifications for E312: Design Type: EXPANDING; Special Features: USED ON WASP CLASS LHA; Size: 0.3125 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.