The Disk,valve, cataloged under National Stock Number 4820-00-953-0830, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 4 specifications, 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 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 | 4820-00-953-0830 |
| Primary Part Number | 553462 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Outside Diameter | 2.167 INCHES MINIMUM AND 2.171 INCHES MAXIMUM IN |
| Style Designator | BUTTERFLY |
| Material Thickness | 0.160 INCHES NOMINAL IN |
| Bolt Circle Diameter | 1.160 INCHES MINIMUM AND 1.320 INCHES MAXIMUM 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 |
|---|---|
| 553462 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 4820-00-953-0830 is a Disk,valve, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-953-0830 has 1 manufacturer part number on file: 553462 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 2815-01-054-6079. Verify interchangeability with system specifications before substitution.
Key specifications for 553462: Outside Diameter: 2.167 INCHES MINIMUM AND 2.171 INCHES MAXIMUM IN; Style Designator: BUTTERFLY; Material Thickness: 0.160 INCHES NOMINAL IN; Bolt Circle Diameter: 1.160 INCHES MINIMUM AND 1.320 INCHES MAXIMUM IN. 4 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.