PartsTable TECHNICAL DATA SHEET

NSN 4820-01-392-3709Government record, cited

Seat, Valve4820-01-392-3709

NSN 4820-01-392-3709 · NIIN 013923709 · Part number 2498-00-313-21 SZ-6,TY-III

Leslie Controls, Inc. Dba Leslie Controls Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 35795

Government record, cited

NSN 4820-01-392-3709 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-392-3709. Manufacturer of record part number: 2498-00-313-21 SZ-6,TY-III.

Also searched as 4820-01-392-3709 · 4820013923709 · NIIN 013923709 · 01-392-3709 · FSC 4820 Valves, Nonpowered · CAGE 35795 · 2498-00-313-21 SZ-6,TY-III

Nearby stock numbers ← 4820-01-392-3707 Retainer, Disk, Valve · 4820-01-392-3712 Cap, Valve →

4820-01-392-3709 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Body Outside Diameter: 6.727 INCHES NOMINAL IN
Style Designator: PLAIN
Body Inside Diameter: 5.682 INCHES NOMINAL IN
Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Seat Angle in Deg: 15.000 NOMINAL
Seating Surface Shape: ANGULAR
1 manufacturer part number on file

Identification

NSN: 4820-01-392-3709
NIIN: 013923709
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2498-00-313-21 SZ-6,TY-III
Manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-392-3709, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-392-3709
Primary Part Number	2498-00-313-21 SZ-6,TY-III
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Leslie Controls, Inc. Dba Leslie Controls Inc
Status	ACTIVE
Body Outside Diameter	6.727 INCHES NOMINAL IN
Style Designator	PLAIN
Body Inside Diameter	5.682 INCHES NOMINAL IN
Material	PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Seat Angle in Deg	15.000 NOMINAL
Seating Surface Shape	ANGULAR

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
2498-00-313-21 SZ-6,TY-III PRIMARY	Leslie Controls, Inc. Dba Leslie Controls Inc (USA)

Reference documents

Reference	Meaning
2498-00-313-21 SZ-6,TY-III	5/9 Secondary reference Circor Intl 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 4820-01-392-3709?

NSN 4820-01-392-3709 is a Seat,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-392-3709?

NSN 4820-01-392-3709 has 1 manufacturer part number on file: 2498-00-313-21 SZ-6,TY-III (Leslie Controls, Inc. Dba Leslie Controls Inc).

What are the specifications of 2498-00-313-21 SZ-6,TY-III?

Key specifications for 2498-00-313-21 SZ-6,TY-III: Overall Height: 0.260 INCHES NOMINAL IN; Body Outside Diameter: 6.727 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 5.682 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-392-3709 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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