PartsTable TECHNICAL DATA SHEET

NSN 4820-01-375-2124Government record, cited

Spring, Check Valve4820-01-375-2124

NSN 4820-01-375-2124 · NIIN 013752124 · Part number SP-2.0-71-05-H-0

Core Industries Inc. Dba Mueller Steam Specialty · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 76588

Government record, cited

NSN 4820-01-375-2124 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-375-2124. Manufacturer of record part number: SP-2.0-71-05-H-0.

Also searched as 4820-01-375-2124 · 4820013752124 · NIIN 013752124 · 01-375-2124 · FSC 4820 Valves, Nonpowered · CAGE 76588 · SP-2.0-71-05-H-0 · 2.0-71-AHB-3-H-0 PIECE 1

Nearby stock numbers ← 4820-01-375-2086 Cartridge, Valve · 4820-01-375-2125 Cartridge, Valve →

4820-01-375-2124 — Valves, Nonpowered

Features

Spring,check Valve — FSC 4820
General Characteristics Item Description: 316 SS
1 manufacturer part number on file
Manufacturer of record: Core Industries Inc. Dba Mueller Steam Specialty

Identification

NSN: 4820-01-375-2124
NIIN: 013752124
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: SP-2.0-71-05-H-0
Manufacturer: Core Industries Inc. Dba Mueller Steam Specialty

General Description

The Spring,check Valve, cataloged under National Stock Number 4820-01-375-2124, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-375-2124
Primary Part Number	SP-2.0-71-05-H-0
Item Name	Spring,check Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Core Industries Inc. Dba Mueller Steam Specialty
Status	ACTIVE
General Characteristics Item Description	316 SS

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
SP-2.0-71-05-H-0 PRIMARY	Core Industries Inc. Dba Mueller Steam Specialty (USA)

Reference documents

Reference	Meaning
2.0-71-AHB-3-H-0 PIECE 1	5/9 Secondary reference Core Industries Inc. Dba Mueller Steam Specialty

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 4820-01-375-2124?

NSN 4820-01-375-2124 is a Spring,check Valve, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-375-2124?

NSN 4820-01-375-2124 has 1 manufacturer part number on file: SP-2.0-71-05-H-0 (Core Industries Inc. Dba Mueller Steam Specialty).

What are the specifications of SP-2.0-71-05-H-0?

Key specifications for SP-2.0-71-05-H-0: General Characteristics Item Description: 316 SS; End Item Identification: MUELLER STEAM SPECIALTY;2 IN. SURE CHECK VALVE;MODEL 71 IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-375-2124 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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