Head, Safety, Pressure Relief4820-01-433-6682

NSN 4820-01-433-6682 · NIIN 014336682 · Part number 040-P-146

Specific Systems, Llc Div Specific Systems · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0AYP6

Government record, cited

NSN 4820-01-433-6682 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-433-6682. Manufacturer of record part number: 040-P-146.

Also searched as 4820-01-433-6682 · 4820014336682 · NIIN 014336682 · 01-433-6682 · FSC 4820 Valves, Nonpowered · CAGE 0AYP6 · 040-P-146

Nearby stock numbers ← 4820-01-433-6602 Valve, Ball · 4820-01-433-6783 Valve, Globe →

4820-01-433-6682 — Valves, Nonpowered

Features

Head,safety,pressure Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Specific Systems, Llc Div Specific Systems

Identification

NSN: 4820-01-433-6682
NIIN: 014336682
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 040-P-146
Manufacturer: Specific Systems, Llc Div Specific Systems

General Description

The Head,safety,pressure Relief, cataloged under National Stock Number 4820-01-433-6682, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Specific Systems, Llc Div Specific Systems. 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	4820-01-433-6682
Primary Part Number	040-P-146
Item Name	Head,safety,pressure Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Specific Systems, Llc Div Specific Systems
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
040-P-146 PRIMARY	Specific Systems, Llc Div Specific Systems (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 4820-01-433-6682?

NSN 4820-01-433-6682 is a Head,safety,pressure Relief, manufactured by Specific Systems, Llc Div Specific Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-433-6682?

NSN 4820-01-433-6682 has 1 manufacturer part number on file: 040-P-146 (Specific Systems, Llc Div Specific Systems).

What are the specifications of 040-P-146?

Key specifications for 040-P-146: End Item Identification: A/C UNIT MAC-61-SPB-V. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-433-6682 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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