PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-2621Alarm-Monitor Group

L3 Technologies, Inc. · NSN 6340-01-538-1009 · FSC 6340 · No Item Name Available
Verified by PartsTable
NSN 6340-01-538-1009 — this item is cataloged by the U.S. Government under National Stock Number 6340-01-538-1009. Primary manufacturer part number: B-2621.
Features
  • Alarm-Monitor Group — FSC 6340
  • 2 verified cross-references
  • Primary manufacturer: L3 Technologies, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Alarm-Monitor Group, cataloged under National Stock Number 6340-01-538-1009, is classified within Federal Supply Class 6340 (No Item Name Available) of the Alarm, Signal, and Security Detection Systems group. The primary manufacturer of record is L3 Technologies, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6340-01-538-1009
Primary Part NumberB-2621
Item NameAlarm-Monitor Group
FSC / FSG6340 / 63 — No Item Name Available
ManufacturerL3 Technologies, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4720-00-204-9569262-128 INTERCHANGEABLE
Sleeve,reinforcing,hose
Phb Inc Dba Phb Die Casting, Inc
4720-00-929-1105262-96 INTERCHANGEABLE
Sleeve,reinforcing,hose
Phb Inc Dba Phb Die Casting, Inc
4720-01-223-3692262-64 INTERCHANGEABLE
Sleeve,reinforcing,hose
Phb Inc Dba Phb Die Casting, Inc
Cross-Reference Index
Part NumberManufacturer
B-2621 PRIMARY L3 Technologies, Inc. (USA)
10-4725-X ITEM 12 L3 Technologies, Inc. (USA)
Related Parts
4720-00-204-9569INTERCHANGEABLE
SLEEVE,REINFORCING,HOSE
262-128
4720-00-929-1105INTERCHANGEABLE
SLEEVE,REINFORCING,HOSE
262-96
4720-01-223-3692INTERCHANGEABLE
SLEEVE,REINFORCING,HOSE
262-64

Frequently Asked Questions

What is NSN 6340-01-538-1009?

NSN 6340-01-538-1009 is a Alarm-Monitor Group, manufactured by L3 Technologies, Inc., classified under FSC 6340 (No Item Name Available). Status: active.

What are the part numbers for NSN 6340-01-538-1009?

NSN 6340-01-538-1009 has 2 cross-referenced part numbers: B-2621 (L3 Technologies, Inc.), 10-4725-X ITEM 12 (L3 Technologies, Inc.).

What NSN replaces 6340-01-538-1009?

There are 3 known substitutes for 6340-01-538-1009: 4720-00-204-9569, 4720-00-929-1105, 4720-01-223-3692. Verify interchangeability with system specifications before substitution.

What are the specifications of B-2621?

Key specifications for B-2621: End Item Identification: ABMS DISPLAY MODULE; Part Name Assigned by Controlling Agency: SDPM,ALARM ASSEMBLY. 2 total characteristics are documented in the Federal Logistics Information System.

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