The Cap,filler Opening, cataloged under National Stock Number 2930-01-270-4949, is classified within Federal Supply Class 2930 (Engine Cooling System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is W S Darley & Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Cap,filler Opening |
| FSC / FSG | 2930 — Engine Cooling System Components, Nonaircraft (FSG 29) |
| Manufacturers | Kovatch Corp. (CAGE 59556); W S Darley & Co (CAGE 15852) |
| Parameter | Value |
|---|---|
| NSN | 2930-01-270-4949 |
| Primary Part Number | YC00100 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2930 / 29 — Engine Cooling System Components, Nonaircraft |
| Manufacturer | W S Darley & Co |
| Status | ACTIVE |
| 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 |
|---|---|
| 196-90001 ITEM 68 | Kovatch Corp. (USA) |
| YC00100 PRIMARY | W S Darley & Co (USA) |
| 157-00008 | Kovatch Corp. (USA) |
| Reference | Meaning |
|---|---|
| 196-90001 | D/9 Drawing number reference only Kovatch Corp. |
| G154 | 5/9 Secondary reference W S Darley & Co |
NSN 2930-01-270-4949 is a Cap,filler Opening, manufactured by W S Darley & Co, classified under FSC 2930, Engine Cooling System Components, Nonaircraft. Status: active.
NSN 2930-01-270-4949 has 3 manufacturer part numbers on file: 196-90001 ITEM 68 (Kovatch Corp.), YC00100 (W S Darley & Co), 157-00008 (Kovatch Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 5945-01-328-5394, 8145-01-523-4000. 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.