PartsTable TECHNICAL DATA SHEET

NSN 4820-01-139-3111Government record, cited

Valve Assembly4820-01-139-3111

NSN 4820-01-139-3111 · NIIN 011393111

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-139-3111 · 4820011393111 · NIIN 011393111 · 01-139-3111 · FSC 4820 Valves, Nonpowered · 7811-006 · 53430

Nearby stock numbers ← 4820-01-139-2824 Stem, Fluid Valve · 4820-01-139-3113 Stem, Fluid Valve →

4820-01-139-3111 — Valves, Nonpowered

Features

Valve Assembly — FSC 4820

Identification

NSN: 4820-01-139-3111
NIIN: 011393111
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve Assembly, cataloged under National Stock Number 4820-01-139-3111, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Valve Assembly
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)

Technical Specifications

Parameter	Value
NSN	4820-01-139-3111
Item Name	Valve Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

⇄ Related Items 3

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

6650-01-272-974653430 POSSIBLE MATCH

TELESCOPE,STRAIGHT

Possible match (shared part number)Leupold & Stevens Inc

6145-01-367-850053430 POSSIBLE MATCH

CABLE,RADIO FREQUENCY

Possible match (shared part number)Semflex, Inc.

4520-01-377-748253430 POSSIBLE MATCH

HEATING ELEMENT,ELECTRICAL,NONIM

Possible match (shared part number)Indeeco Llc Dba Indeeco

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
7811-006	C/1 Advisory reference — outside the item-of-supply concept Tennant Company
53430	3/9 Design control — primary reference Tennant Company

Related Parts

6650-01-272-9746POSSIBLE MATCH

TELESCOPE,STRAIGHT

53430

6145-01-367-8500POSSIBLE MATCH

CABLE,RADIO FREQUENCY

53430

4520-01-377-7482POSSIBLE MATCH

HEATING ELEMENT,ELECTRICAL,NONIM

53430

Frequently Asked Questions

What is NSN 4820-01-139-3111?

NSN 4820-01-139-3111 is a Valve Assembly, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-139-3111?

3 possible matches (shared part number, not a government interchangeability claim): 6650-01-272-9746, 6145-01-367-8500, 4520-01-377-7482. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-139-3111 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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