The Follower Assembly,p,piston, cataloged under National Stock Number 2915-00-285-6646, 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 Triumph Engine Control Systems Llc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2915-00-285-6646 |
| Primary Part Number | 75223 |
| Item Name | Follower Assembly,p,piston |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| General Characteristics Item Description | ARM,CRES,AMS5350,CHROME PLATE,AMS2406,26 MIN,34 MAX ROCKWELL CHARDNESS,1.8745 IN. MIN,1.8755 IN. MAX EFFECTIVE LG,0.1250 IN. MIN,0.1255 IN. MAX HOLE THROUGH EACH END ON BOTH SIDES,ONE END 0.940 IN. W,0.626 IN. MIN,0.632 IN. MAX FORK SPREAD,OPPOSITE END,0.630 IN. W,0.377 IN. MIN,0.383 IN. MAX FORK SPREAD,ROLLER,ROCKER ARM,CAM FOLLOWER,CRES,AMS5616,IMMUNIZED,0.3748 IN. MIN,0.3750 IN. MAX OD,0.1252 IN. MIN,0.1257 IN. MAX ID,0.154 IN. MIN,0.158 IN. MAX W,SHAFT,STRAIGHT,CRES,AMS5616,42 MIN,50 MAX ROCKWELL C HARDNESS,IMMUNIZED,0.660 IN. LG,0.1246 IN. MIN,0.1249 IN. MAX DIA,ONE HOLE 0.040 IN. MIN,0.050 IN. MAXLOCATED 0.090 IN. FROM ONE END,SPACER,SLEEVE,CRESS,AMS5640,IMMUNIZED,75 MIN,100 MAX ROCKWELL B HARDNESS,0.185 IN. MIN,0.195 IN. MAX OD,0.125 IN. MIN,0.127 IN. MAX ID,0.053 IN. MIN,0.059 IN. MAX THK 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 |
|---|---|
| 75223 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 2915-00-285-6646 is a Follower Assembly,p,piston, manufactured by Triumph Engine Control Systems Llc, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-285-6646 has 1 manufacturer part number on file: 75223 (Triumph Engine Control Systems Llc).
Key specifications for 75223: General Characteristics Item Description: ARM,CRES,AMS5350,CHROME PLATE,AMS2406,26 MIN,34 MAX ROCKWELL CHARDNESS,1.8745 IN. MIN,1.8755 IN. MAX EFFECTIVE LG,0.1250 IN. MIN,0.1255 IN. MAX HOLE THROUGH EACH END ON BOTH SIDES,ONE END 0.940 IN. W,0.626 IN. MIN,0.632 IN. MAX FORK SPREAD,OPPOSITE END,0.630 IN. W,0.377 IN. MIN,0.383 IN. MAX FORK SPREAD,ROLLER,ROCKER ARM,CAM FOLLOWER,CRES,AMS5616,IMMUNIZED,0.3748 IN. MIN,0.3750 IN. MAX OD,0.1252 IN. MIN,0.1257 IN. MAX ID,0.154 IN. MIN,0.158 IN. MAX W,SHAFT,STRAIGHT,CRES,AMS5616,42 MIN,50 MAX ROCKWELL C HARDNESS,IMMUNIZED,0.660 IN. LG,0.1246 IN. MIN,0.1249 IN. MAX DIA,ONE HOLE 0.040 IN. MIN,0.050 IN. MAXLOCATED 0.090 IN. FROM ONE END,SPACER,SLEEVE,CRESS,AMS5640,IMMUNIZED,75 MIN,100 MAX ROCKWELL B HARDNESS,0.185 IN. MIN,0.195 IN. MAX OD,0.125 IN. MIN,0.127 IN. MAX ID,0.053 IN. MIN,0.059 IN. MAX THK IN. 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 2915-00-285-6646 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.