Valve, Safety Relief4820-01-174-4116

NSN 4820-01-174-4116 · NIIN 011744116

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-174-4116 · 4820011744116 · NIIN 011744116 · 01-174-4116 · FSC 4820 Valves, Nonpowered · 12019-309 · 12019-309 · 12019-309

Nearby stock numbers ← 4820-01-174-4103 Valve, Regulating, Fluid Pressure · 4820-01-174-4128 →

4820-01-174-4116 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
Flow Control Device: DIAPHRAGM
Connection Style: INVERTED FLARE(PIPE) ALL ENDS
Connection Type: THREADED INTERNAL PIPE ALL ENDS
Thread Direction: RIGHT-HAND ALL ENDS
Nominal Thread Size: 0.250 INCHES ALL ENDS IN
Material: STEEL BODY
Thread Series Designator: NPT ALL ENDS

Identification

NSN: 4820-01-174-4116
NIIN: 011744116
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-174-4116, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-174-4116
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	DIAPHRAGM
Connection Style	INVERTED FLARE(PIPE) ALL ENDS
Connection Type	THREADED INTERNAL PIPE ALL ENDS
Thread Direction	RIGHT-HAND ALL ENDS
Nominal Thread Size	0.250 INCHES ALL ENDS IN
Material	STEEL BODY
Thread Series Designator	NPT ALL ENDS
Valve Operation Method	HYDRAULIC

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

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

Reference documents

Reference	Meaning
12019-309	3/2 Design control — primary reference U.S. Government activity
12019-309	5/9 Secondary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co
12019-309	5/9 Secondary reference Koehring Co

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 4820-01-174-4116?

NSN 4820-01-174-4116 is a Valve,safety Relief, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-174-4116?

Key specifications for 4820-01-174-4116: Flow Control Device: DIAPHRAGM; Connection Style: INVERTED FLARE(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-174-4116 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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