Valve, Regulating, Fluid Pressure4820-01-211-4550

NSN 4820-01-211-4550 · NIIN 012114550 · Part number M-12975-G 1/2IN

Grove Valve Operations · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 26505

Government record, cited

NSN 4820-01-211-4550 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-211-4550. Manufacturer of record part number: M-12975-G 1/2IN.

Also searched as 4820-01-211-4550 · 4820012114550 · NIIN 012114550 · 01-211-4550 · FSC 4820 Valves, Nonpowered · CAGE 26505 · M-12975-G 1/2IN

Nearby stock numbers ← 4820-01-211-4546 · 4820-01-211-4551 Valve, Calibrated Flow →

4820-01-211-4550 — Valves, Nonpowered

Features

Valve,regulating,fluid Pressure — FSC 4820
First End Thread Direction: RIGHT-HAND
Second End Relationship with First End: IDENTICAL
First End Style Designator: PLAIN
End Connection Quantity: 2
First End Connection Type: THREADED EXTERNAL PIPE
Material: STEEL CORROSION RESISTING BODY
Maximum Inlet Pressure Rating: ERR-060

Identification

NSN: 4820-01-211-4550
NIIN: 012114550
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: M-12975-G 1/2IN
Manufacturer: Grove Valve Operations

General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-211-4550, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. Government technical data includes 8 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-211-4550
Primary Part Number	M-12975-G 1/2IN
Item Name	Valve,regulating,fluid Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Grove Valve Operations
Status	ACTIVE
First End Thread Direction	RIGHT-HAND
Second End Relationship with First End	IDENTICAL
First End Style Designator	PLAIN
End Connection Quantity	2
First End Connection Type	THREADED EXTERNAL PIPE
Material	STEEL CORROSION RESISTING BODY
Maximum Inlet Pressure Rating	ERR-060
Thread Size and Series/type Designator	1/2-14 NPT FIRST END

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
M-12975-G 1/2IN PRIMARY	Grove Valve Operations (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 4820-01-211-4550?

NSN 4820-01-211-4550 is a Valve,regulating,fluid Pressure, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-211-4550?

NSN 4820-01-211-4550 has 1 manufacturer part number on file: M-12975-G 1/2IN (Grove Valve Operations).

What are the specifications of M-12975-G 1/2IN?

Key specifications for M-12975-G 1/2IN: First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; First End Style Designator: PLAIN; End Connection Quantity: 2. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-211-4550 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.

PartsTable Design LLC · partstable.com