Valve, Relief, Pressure and Temper4820-01-515-5526
NSN 4820-01-515-5526 · NIIN 015155526 · Part number KT4856-15
The Entwistle Company Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 20722
Government record, cited
NSN 4820-01-515-5526 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-515-5526. Manufacturer of record part number: KT4856-15.
The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-515-5526, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Entwistle Company Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
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4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-515-5526?
NSN 4820-01-515-5526 is a Valve,relief,pressure and Temper, manufactured by The Entwistle Company Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-515-5526?
NSN 4820-01-515-5526 has 1 manufacturer part number on file: KT4856-15 (The Entwistle Company Llc).
What are the specifications of KT4856-15?
Key specifications for KT4856-15: End Item Identification: W/S VIRGINIA CLASS SSN; E/I BACK PACK ASSY. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-515-5526 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 4820-01-515-5526?
NSN 4820-01-515-5526 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.