PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

11-879Valve,relief,pressure and Temper

Name: 11-879
SKU: 4820-01-646-5938

Actronics Incorporated Dba Actronics Inc · NSN 4820-01-646-5938 · FSC 4820 · No Item Name Available

Verified by PartsTable

NSN 4820-01-646-5938 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-646-5938. Primary manufacturer part number: 11-879.

4820-01-646-5938 — No Item Name Available illustration

Features

Valve,relief,pressure and Temper — FSC 4820
2 verified cross-references
Primary manufacturer: Actronics Incorporated Dba Actronics Inc

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-646-5938, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Actronics Incorporated Dba Actronics Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 — No Item Name Available (FSG 48)
Manufacturers	Ametek Thermal Systems Inc (CAGE 12536); Actronics Incorporated Dba Actronics Inc (CAGE 27195)

Technical Specifications

Parameter	Value
NSN	4820-01-646-5938
Primary Part Number	11-879
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — No Item Name Available
Manufacturer	Actronics Incorporated Dba Actronics Inc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 7

5821-00-041-18452Z3351-458 INTERCHANGEABLE

Plate

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir

5945-00-247-83648193581 INTERCHANGEABLE

Relay,electromagnetic

Us Army Aviation and Missile Command

7320-00-389-5117P-9771 INTERCHANGEABLE

Blade,slicer Attachment

Itw Food Equipment Group Llc Dba Hobart Service

5330-00-403-647511879 INTERCHANGEABLE

Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions

5330-00-580-244711879 INTERCHANGEABLE

Gasket

Napco International Llc Dba Napco International Inc

5310-01-235-1929311879 INTERCHANGEABLE

Washer,flat

Rexnord Industries, Llc Div Couplings Division

3020-01-357-569411879 INTERCHANGEABLE

Gear,clutch

DP Manufacturing Inc.

Cross-Reference Index

Part Number	Manufacturer
60874-002	Ametek Thermal Systems Inc (USA)
11-879 PRIMARY	Actronics Incorporated Dba Actronics Inc (USA)

Related Parts

5821-00-041-1845INTERCHANGEABLE

PLATE

2Z3351-458

5945-00-247-8364INTERCHANGEABLE

RELAY,ELECTROMAGNETIC

8193581

7320-00-389-5117INTERCHANGEABLE

BLADE,SLICER ATTACHMENT

P-9771

5330-00-403-6475INTERCHANGEABLE

SEAL,PLAIN ENCASED

11879

5330-00-580-2447INTERCHANGEABLE

GASKET

11879

5310-01-235-1929INTERCHANGEABLE

WASHER,FLAT

311879

3020-01-357-5694INTERCHANGEABLE

GEAR,CLUTCH

11879

Frequently Asked Questions

What is NSN 4820-01-646-5938?

NSN 4820-01-646-5938 is a Valve,relief,pressure and Temper, manufactured by Actronics Incorporated Dba Actronics Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-646-5938?

NSN 4820-01-646-5938 has 2 cross-referenced part numbers: 60874-002 (Ametek Thermal Systems Inc), 11-879 (Actronics Incorporated Dba Actronics Inc).

What NSN replaces 4820-01-646-5938?

There are 7 known substitutes for 4820-01-646-5938: 5821-00-041-1845, 5945-00-247-8364, 7320-00-389-5117 and 4 more. Verify interchangeability with system specifications before substitution.

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.

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