PartsTable TECHNICAL DATA SHEET

NSN 4820-01-047-6822Government record, cited

Seat, Valve4820-01-047-6822

NSN 4820-01-047-6822 · NIIN 010476822 · Part number 75765-67X3PC4

Derbyshire Machine & Tool Co · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 71905

Government record, cited

NSN 4820-01-047-6822 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-047-6822. Manufacturer of record part number: 75765-67X3PC4.

Also searched as 4820-01-047-6822 · 4820010476822 · NIIN 010476822 · 01-047-6822 · FSC 4820 Valves, Nonpowered · CAGE 71905 · 75765-67X3PC4 · 75765-67XPC4

Nearby stock numbers ← 4820-01-047-6752 · 4820-01-047-7009 Valve, Check →

4820-01-047-6822 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Body Outside Diameter: 4.746 INCHES NOMINAL IN
Body Stepped Inside Diameter: 2.250 INCHES NOMINAL FIRST STEP IN
Body Stepped Inside Diameter: 4.000 INCHES NOMINAL SECOND STEP IN
Style Designator: PLAIN
Material: NICKEL ALLOY OVERALL
Seating Surface Shape: FLAT
1 manufacturer part number on file

Identification

NSN: 4820-01-047-6822
NIIN: 010476822
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 75765-67X3PC4
Manufacturer: Derbyshire Machine & Tool Co

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-047-6822, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-047-6822
Primary Part Number	75765-67X3PC4
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Derbyshire Machine & Tool Co
Status	ACTIVE
Body Outside Diameter	4.746 INCHES NOMINAL IN
Body Stepped Inside Diameter	2.250 INCHES NOMINAL FIRST STEP IN
Body Stepped Inside Diameter	4.000 INCHES NOMINAL SECOND STEP IN
Style Designator	PLAIN
Material	NICKEL ALLOY OVERALL
Seating Surface Shape	FLAT

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
75765-67X3PC4 PRIMARY	Derbyshire Machine & Tool Co (USA)

Reference documents

Reference	Meaning
75765-67XPC4	5/9 Secondary reference P J Valves Inc
75765-67X3PC4	3/2 Design control — primary reference U.S. Government activity

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 4820-01-047-6822?

NSN 4820-01-047-6822 is a Seat,valve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-047-6822?

NSN 4820-01-047-6822 has 1 manufacturer part number on file: 75765-67X3PC4 (Derbyshire Machine & Tool Co).

What are the specifications of 75765-67X3PC4?

Key specifications for 75765-67X3PC4: Overall Height: 1.000 INCHES NOMINAL IN; Body Outside Diameter: 4.746 INCHES NOMINAL IN; Body Stepped Inside Diameter: 2.250 INCHES NOMINAL FIRST STEP IN; Body Stepped Inside Diameter: 4.000 INCHES NOMINAL SECOND STEP IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-047-6822 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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