PartsTable TECHNICAL DATA SHEET

NSN 4820-01-321-3907Government record, cited

Plug, Backup-Regulator4820-01-321-3907

NSN 4820-01-321-3907 · NIIN 013213907 · Part number 2881537

Parker-Hannifin Corporation Dba Pneutronics · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 3H889

Government record, cited

NSN 4820-01-321-3907 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-321-3907. Manufacturer of record part number: 2881537.

Also searched as 4820-01-321-3907 · 4820013213907 · NIIN 013213907 · 01-321-3907 · FSC 4820 Valves, Nonpowered · CAGE 3H889 · 2881537

Nearby stock numbers ← 4820-01-321-3864 Disk, Valve · 4820-01-321-3941 →

4820-01-321-3907 — Valves, Nonpowered

Features

Plug,backup-Regulator — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Parker-Hannifin Corporation Dba Pneutronics

Identification

NSN: 4820-01-321-3907
NIIN: 013213907
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2881537
Manufacturer: Parker-Hannifin Corporation Dba Pneutronics

General Description

The Plug,backup-Regulator, cataloged under National Stock Number 4820-01-321-3907, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Plug,backup-Regulator
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Parker-Hannifin Corporation Dba Pneutronics (CAGE 3H889); Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (CAGE 59211)

Technical Specifications

Parameter	Value
NSN	4820-01-321-3907
Primary Part Number	2881537
Item Name	Plug,backup-Regulator
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Parker-Hannifin Corporation Dba Pneutronics
Status	ACTIVE

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
2881537 PRIMARY	Parker-Hannifin Corporation Dba Pneutronics (USA)
2881537	Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)

Reference documents

Reference	Meaning
2881537	5/9 Secondary 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 4820-01-321-3907?

NSN 4820-01-321-3907 is a Plug,backup-Regulator, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-321-3907?

NSN 4820-01-321-3907 has 2 manufacturer part numbers on file: 2881537 (Parker-Hannifin Corporation Dba Pneutronics), 2881537 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations).

Is NSN 4820-01-321-3907 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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