PartsTable TECHNICAL DATA SHEET

NSN 4820-01-255-1142Government record, cited

Valve, Relief, Pressure and Temper4820-01-255-1142

NSN 4820-01-255-1142 · NIIN 012551142 · Part number 40A14109-3

Raytheon Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 15090

Government record, cited

NSN 4820-01-255-1142 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-255-1142. Manufacturer of record part number: 40A14109-3.

Also searched as 4820-01-255-1142 · 4820012551142 · NIIN 012551142 · 01-255-1142 · FSC 4820 Valves, Nonpowered · CAGE 15090 · 40A14109-3

Nearby stock numbers ← 4820-01-255-1141 · 4820-01-255-1143 →

4820-01-255-1142 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
FSC Application Data: PACER SPECIAL
1 manufacturer part number on file
Manufacturer of record: Raytheon Company

Identification

NSN: 4820-01-255-1142
NIIN: 012551142
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 40A14109-3
Manufacturer: Raytheon Company

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-255-1142, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Raytheon Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-255-1142
Primary Part Number	40A14109-3
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Raytheon Company
Status	ACTIVE
FSC Application Data	PACER SPECIAL

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
40A14109-3 PRIMARY	Raytheon Company (USA)

Reference documents

Reference	Meaning
40A14109-3	5/9 Secondary reference Hughes Missile Systems Co San Diego

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 4820-01-255-1142?

NSN 4820-01-255-1142 is a Valve,relief,pressure and Temper, manufactured by Raytheon Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-255-1142?

NSN 4820-01-255-1142 has 1 manufacturer part number on file: 40A14109-3 (Raytheon Company).

What are the specifications of 40A14109-3?

Key specifications for 40A14109-3: FSC Application Data: PACER SPECIAL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-255-1142 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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