PartsTable TECHNICAL DATA SHEET

NSN 4820-01-231-7000Government record, cited

Valve, Safety Relief4820-01-231-7000

NSN 4820-01-231-7000 · NIIN 012317000 · Part number C4267-5 1-1/2IN 45T55PSI

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01343

Government record, cited

NSN 4820-01-231-7000 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-231-7000. Manufacturer of record part number: C4267-5 1-1/2IN 45T55PSI.

Also searched as 4820-01-231-7000 · 4820012317000 · NIIN 012317000 · 01-231-7000 · FSC 4820 Valves, Nonpowered · CAGE 01343 · C4267-5 1-1/2IN 45T55PSI · C4267-5 · 87C 1-1/2IN-MXF

Nearby stock numbers ← 4820-01-231-6999 Valve, Safety Relief · 4820-01-231-7002 →

4820-01-231-7000 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Anderson Greenwood Lp Dba Anderson Greenwood Crosby

Identification

NSN: 4820-01-231-7000
NIIN: 012317000
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: C4267-5 1-1/2IN 45T55PSI
Manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-231-7000, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,safety Relief
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (CAGE 01343)

Technical Specifications

Parameter	Value
NSN	4820-01-231-7000
Primary Part Number	C4267-5 1-1/2IN 45T55PSI
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Anderson Greenwood Lp Dba Anderson Greenwood Crosby
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
C4267-5 1-1/2IN 45T55PSI PRIMARY	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)

Reference documents

Reference	Meaning
C4267-5	D/9 Drawing number reference only Anderson Greenwood Lp Dba Anderson Greenwood Crosby
87C 1-1/2IN-MXF	C/1 Advisory reference — outside the item-of-supply concept Anderson Greenwood Lp Dba Anderson Greenwood Crosby

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 4820-01-231-7000?

NSN 4820-01-231-7000 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-231-7000?

NSN 4820-01-231-7000 has 1 manufacturer part number on file: C4267-5 1-1/2IN 45T55PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

Is NSN 4820-01-231-7000 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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