The Follower,packing, cataloged under National Stock Number 4820-01-018-4976, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fisher Controls Co Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-018-4976 |
| Primary Part Number | 1E9439-35072 |
| Item Name | Follower,packing |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fisher Controls Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL CRES;1.062 IN. LG;FIRST END 1.000 IN. OD,0.406 IN. ID,COUNTERSUNK 0.438 IN. X 90 DEG,END TAPERED 0.688 IN. RADIUS;ONE GROOVE 0.094 IN. W,0.875 IN. OD,LOCATED 0.188 IN. FROM FIRST END;ONE BRAZING RING LOCATED 0.719 IN. FROM FIRST END;SECOND END 0.871 IN. MIN 0.808 IN. MAX OD,0.391 IN. MIN 0.394 IN. MAX WALL THK,0.020 IN. MIN 0.089 IN. MAX ID,OUTSIDE CORNERS CHAMFERED 0.812 X 45 DEG IN |
| 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 |
|---|---|
| 1E9439-35072 PRIMARY | Fisher Controls Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 1E943935072 | 5/9 Secondary reference Fisher Controls Co Inc |
NSN 4820-01-018-4976 is a Follower,packing, manufactured by Fisher Controls Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-018-4976 has 1 manufacturer part number on file: 1E9439-35072 (Fisher Controls Co Inc).
Key specifications for 1E9439-35072: General Characteristics Item Description: MATERIAL CRES;1.062 IN. LG;FIRST END 1.000 IN. OD,0.406 IN. ID,COUNTERSUNK 0.438 IN. X 90 DEG,END TAPERED 0.688 IN. RADIUS;ONE GROOVE 0.094 IN. W,0.875 IN. OD,LOCATED 0.188 IN. FROM FIRST END;ONE BRAZING RING LOCATED 0.719 IN. FROM FIRST END;SECOND END 0.871 IN. MIN 0.808 IN. MAX OD,0.391 IN. MIN 0.394 IN. MAX WALL THK,0.020 IN. MIN 0.089 IN. MAX ID,OUTSIDE CORNERS CHAMFERED 0.812 X 45 DEG 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.
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.