The Orifice, cataloged under National Stock Number 2910-01-055-8164, is classified within Federal Supply Class 2910 (Engine Fuel System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2910-01-055-8164 |
| Primary Part Number | 910558C1 |
| Item Name | Orifice |
| FSC / FSG | 2910 / 29 — Engine Fuel System Components, Nonaircraft |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| FSC Application Data | ENGINE FUEL SYSTEM COMPONENT,NONAIRCRAFT |
| General Characteristics Item Description | MATL CRES TYPE 316 OR 321,0.2345 IN. O/A LG,0.242 IN. OD,0.125-40UNC-2A THD A |
| 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 |
|---|---|
| 910558C1 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 910558C1 | Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics (USA) |
| Reference | Meaning |
|---|---|
| 910558C1 | 5/9 Secondary reference Solar Turbines Incorporated Dba Solar Turbines Incorporated |
NSN 2910-01-055-8164 is a Orifice, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 2910, Engine Fuel System Components, Nonaircraft. Status: active.
NSN 2910-01-055-8164 has 2 manufacturer part numbers on file: 910558C1 (Rtx Corporation Div Pratt & Whitney), 910558C1 (Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics).
Key specifications for 910558C1: FSC Application Data: ENGINE FUEL SYSTEM COMPONENT,NONAIRCRAFT; General Characteristics Item Description: MATL CRES TYPE 316 OR 321,0.2345 IN. O/A LG,0.242 IN. OD,0.125-40UNC-2A THD A; End Item Identification: 160033-200. 2 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.