NSN 4820-00-889-7511 · NIIN 008897511 · Part number 666231-566
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 12436
Government record, cited
NSN 4820-00-889-7511 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-889-7511. Manufacturer of record part number: 666231-566.
Also searched as4820-00-889-7511 ·
4820008897511 ·
NIIN 008897511 ·
00-889-7511 ·
FSC 4820 Valves, Nonpowered · CAGE 12436 · 666231-566
Nearby stock numbers← 4820-00-889-7385
·
4820-00-889-7885 Sleeve and Slide, Directional Con →
4820-00-889-7511 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
Identification
NSN: 4820-00-889-7511
NIIN: 008897511
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 666231-566
Manufacturer: Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-00-889-7511, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Valve,safety Relief
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (CAGE 12436)
Technical Specifications
Parameter
Value
NSN
4820-00-889-7511
Primary Part Number
666231-566
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
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.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
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 4820-00-889-7511?
NSN 4820-00-889-7511 is a Valve,safety Relief, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-889-7511?
NSN 4820-00-889-7511 has 1 manufacturer part number on file: 666231-566 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).
Is NSN 4820-00-889-7511 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.