The Piston,servo, cataloged under National Stock Number 2915-00-738-9161, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 1 specification, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2915-00-738-9161 |
| Primary Part Number | 518548 |
| Item Name | Piston,servo |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,AMS5630 OR AISI 440C OR UNITED AIRCRAFT SPEC NO. HS178,PASSIVATED FINISH,ROCKWELL HARDNESS RATING RC53-58,IRREGULAR SHAPE,2.020 IN. O/A LG,FLANGE ON FIRST END,1.057 IN. MIN,1.059 IN. MAX OD,0.469 IN. OD ON SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 518548 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 2915-00-738-9161 is a Piston,servo, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-738-9161 has 1 manufacturer part number on file: 518548 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 3950-01-278-1061. Verify interchangeability with system specifications before substitution.
Key specifications for 518548: General Characteristics Item Description: CRES,AMS5630 OR AISI 440C OR UNITED AIRCRAFT SPEC NO. HS178,PASSIVATED FINISH,ROCKWELL HARDNESS RATING RC53-58,IRREGULAR SHAPE,2.020 IN. O/A LG,FLANGE ON FIRST END,1.057 IN. MIN,1.059 IN. MAX OD,0.469 IN. OD ON SECOND END IN; End Item Identification: 29151339868. 1 specification is 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.
NSN 2915-00-738-9161 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.