PartsTable TECHNICAL DATA SHEET

NSN 4820-01-323-3306Government record, cited

Disk, Valve4820-01-323-3306

NSN 4820-01-323-3306 · NIIN 013233306 · Part number 1749A

Flowserve Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 63220

Government record, cited

NSN 4820-01-323-3306 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-323-3306. Manufacturer of record part number: 1749A.

Also searched as 4820-01-323-3306 · 4820013233306 · NIIN 013233306 · 01-323-3306 · FSC 4820 Valves, Nonpowered · CAGE 63220 · 1749A · F-51235 · F-51235 ITEM 4

Nearby stock numbers ← 4820-01-323-3284 · 4820-01-323-3462 Sleeve and Slide, Directional Con →

4820-01-323-3306 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Pressure Rating: 6250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Temp Rating: 100.0 FAHRENHEIT NOMINAL DEGF
Material: STEEL
2 manufacturer part numbers on file
Manufacturer of record: Flowserve Inc

Identification

NSN: 4820-01-323-3306
NIIN: 013233306
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1749A
Manufacturer: Flowserve Inc

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-323-3306, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-323-3306
Primary Part Number	1749A
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Flowserve Inc
Status	ACTIVE
Pressure Rating	6250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Temp Rating	100.0 FAHRENHEIT NOMINAL DEGF
Material	STEEL

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
1749A PRIMARY	Flowserve Inc (USA)
F-51235 ITEM 4	Flowserve Inc (USA)

Reference documents

Reference	Meaning
F-51235	D/9 Drawing number reference only Flowserve Inc

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 4820-01-323-3306?

NSN 4820-01-323-3306 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-323-3306?

NSN 4820-01-323-3306 has 2 manufacturer part numbers on file: 1749A (Flowserve Inc), F-51235 ITEM 4 (Flowserve Inc).

What are the specifications of 1749A?

Key specifications for 1749A: Pressure Rating: 6250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 100.0 FAHRENHEIT NOMINAL DEGF; Special Features: VALVE SIZE 0.500 IN. IN; Material: STEEL. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-323-3306 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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