The Cover,constant Spee, cataloged under National Stock Number 2935-00-983-4404, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Precision Speed Manufacturing, Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Cover,constant Spee |
| FSC / FSG | 2935 — Engine System Cooling Components, Aircraft Prime Moving (FSG 29) |
| Manufacturers | Precision Speed Manufacturing, Llc (CAGE 56055); J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc (CAGE 33575); Barnes Group Inc. Div Windsor Division (CAGE 31417) |
| Parameter | Value |
|---|---|
| NSN | 2935-00-983-4404 |
| Primary Part Number | 563340 |
| Item Name | Cover,constant Spee |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Precision Speed Manufacturing, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 563340 PRIMARY | Precision Speed Manufacturing, Llc (USA) |
| 563340 | J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc (USA) |
| 563340 | Barnes Group Inc. Div Windsor Division (USA) |
| Reference | Meaning |
|---|---|
| 563340 | 5/9 Secondary reference Bdk Machine Co Inc |
| 563340 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 2935-00-983-4404 is a Cover,constant Spee, manufactured by Precision Speed Manufacturing, Llc, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-00-983-4404 has 3 manufacturer part numbers on file: 563340 (Precision Speed Manufacturing, Llc), 563340 (J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc), 563340 (Barnes Group Inc. Div Windsor Division).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-087-5833. Verify interchangeability with system specifications before substitution.
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.