Diaphragm, Actuator Valve, Special4820-01-138-3125

NSN 4820-01-138-3125 · NIIN 011383125 · Part number 424-600-000-251

Bellofram Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01170

Government record, cited

NSN 4820-01-138-3125 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-138-3125. Manufacturer of record part number: 424-600-000-251.

Also searched as 4820-01-138-3125 · 4820011383125 · NIIN 011383125 · 01-138-3125 · FSC 4820 Valves, Nonpowered · CAGE 01170 · 424-600-000-251

Nearby stock numbers ← 4820-01-138-3095 Stem, Fluid Valve · 4820-01-138-3399 →

4820-01-138-3125 — Valves, Nonpowered

Features

Diaphragm,actuator Valve,special — FSC 4820
Material: RUBBER SYNTHETIC
1 manufacturer part number on file
Manufacturer of record: Bellofram Corporation

Identification

NSN: 4820-01-138-3125
NIIN: 011383125
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 424-600-000-251
Manufacturer: Bellofram Corporation

General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-138-3125, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bellofram Corporation. Government technical data includes 1 specification, 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-138-3125
Primary Part Number	424-600-000-251
Item Name	Diaphragm,actuator Valve,special
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Bellofram Corporation
Status	ACTIVE
Material	RUBBER SYNTHETIC

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
424-600-000-251 PRIMARY	Bellofram Corporation (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 4820-01-138-3125?

NSN 4820-01-138-3125 is a Diaphragm,actuator Valve,special, manufactured by Bellofram Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-138-3125?

NSN 4820-01-138-3125 has 1 manufacturer part number on file: 424-600-000-251 (Bellofram Corporation).

What are the specifications of 424-600-000-251?

Key specifications for 424-600-000-251: Material: RUBBER SYNTHETIC. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-138-3125 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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