NSN 4820-01-052-5320 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-052-5320. Manufacturer of record part number: 763694-21.
Also searched as4820-01-052-5320 ·
4820010525320 ·
NIIN 010525320 ·
01-052-5320 ·
FSC 4820 Valves, Nonpowered · CAGE 22013 · 763694-21
Nearby stock numbers← 4820-01-052-5319 Blanket, Insulation-Valve, Right S
·
4820-01-052-5323 Poppet →
4820-01-052-5320 — Valves, Nonpowered
Features
Blanket,insulation-Valve,left Si — FSC 4820
General Characteristics Item Description: 4.000 IN. DIA IN
2 manufacturer part numbers on file
Manufacturer of record: Tighitco Inc.
Identification
NSN: 4820-01-052-5320
NIIN: 010525320
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 763694-21
Manufacturer: Tighitco Inc.
General Description
The Blanket,insulation-Valve,left Si, cataloged under National Stock Number 4820-01-052-5320, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tighitco Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Hamilton Sundstrand Corporation Dba Collins Aerospace (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 4820-01-052-5320?
NSN 4820-01-052-5320 is a Blanket,insulation-Valve,left Si, manufactured by Tighitco Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-052-5320?
NSN 4820-01-052-5320 has 2 manufacturer part numbers on file: 763694-21 (Tighitco Inc.), 763694-21 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
What are the specifications of 763694-21?
Key specifications for 763694-21: General Characteristics Item Description: 4.000 IN. DIA IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-052-5320 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.