Valve, Safety Relief 4820-01-697-5953 NSN 4820-01-697-5953 · NIIN 016975953 · Part number BPS05-20T-N6221
Straval Machine Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 5ZU03
NSN 4820-01-697-5953 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-697-5953. Manufacturer of record part number: BPS05-20T-N6221 .
Also searched as
4820-01-697-5953 ·
4820016975953 ·
NIIN 016975953 ·
01-697-5953 ·
FSC 4820 Valves, Nonpowered · CAGE 5ZU03 · BPS05-20T-N6221 · 262-8592593 FIND 11
Nearby stock numbers
← 4820-01-697-5854 Parts Kit, Check Valve
·
4820-01-697-6135 Cartridge, Shut-Off Valve →
4820-01-697-5953 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820 1 manufacturer part number on file Manufacturer of record: Straval Machine Co Inc
Identification
NSN: 4820-01-697-5953
NIIN: 016975953
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: BPS05-20T-N6221
Manufacturer: Straval Machine Co Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-697-5953, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Straval Machine Co Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name Valve,safety Relief FSC / FSG 4820 — Valves, Nonpowered (FSG 48) Manufacturers Straval Machine Co Inc (CAGE 5ZU03)
Technical Specifications
Parameter Value NSN 4820-01-697-5953 Primary Part Number BPS05-20T-N6221 Item Name Valve,safety Relief FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Straval Machine Co Inc Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
BPS05-20T-N6221 PRIMARY Straval Machine Co Inc (USA)
Reference documents
Reference Meaning
262-8592593 FIND 11
D/9 Drawing number reference only Naval Sea Systems Command
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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4820-00-001-0010
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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 4820-01-697-5953?
NSN 4820-01-697-5953 is a Valve,safety Relief, manufactured by Straval Machine Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-697-5953?
NSN 4820-01-697-5953 has 1 manufacturer part number on file: BPS05-20T-N6221 (Straval Machine Co Inc).
Is NSN 4820-01-697-5953 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.
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.
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