The Knob, cataloged under National Stock Number 5355-01-283-1212, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is W S Darley & Co. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5355-01-283-1212 |
| Primary Part Number | 3000900 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| 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 |
|---|---|
| 051-00002-48 | Kovatch Corp. (USA) |
| 3000900 PRIMARY | W S Darley & Co (USA) |
| Reference | Meaning |
|---|---|
| G1985 | 3/9 Design control — primary reference W S Darley & Co |
NSN 5355-01-283-1212 is a Knob, manufactured by W S Darley & Co, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-283-1212 has 2 manufacturer part numbers on file: 051-00002-48 (Kovatch Corp.), 3000900 (W S Darley & Co).
1 possible match (shared part number, not a government interchangeability claim): 2840-01-447-6533. Verify interchangeability with system specifications before substitution.
Key specifications for 3000900: End Item Identification: REMOTE CONTROLLED RELIEF VALVE. 0 specifications are 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.