PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

PM21816Bracket,main

Name: PM21816
SKU: 5340-00-623-5422

Mason Electric Co. Dba Mason Controls · NSN 5340-00-623-5422 · FSC 5340 · No Item Name Available

Verified by PartsTable

NSN 5340-00-623-5422 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-623-5422. Primary manufacturer part number: PM21816.

5340-00-623-5422 — No Item Name Available illustration

Features

Bracket,main — FSC 5340
6 verified cross-references
Primary manufacturer: Mason Electric Co. Dba Mason Controls

Applications

General assembly and fastening
Structural repair and reinforcement
Facility maintenance hardware

General Description

The Bracket,main, cataloged under National Stock Number 5340-00-623-5422, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mason Electric Co. Dba Mason Controls. This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts

Item Name	Bracket,main
FSC / FSG	5340 — No Item Name Available (FSG 53)
Manufacturers	Amphenol Corp Div Amphenol Aerospace Operations (CAGE 77820); Unison Industries Llc (CAGE 59501); Mason Electric Co. Dba Mason Controls (CAGE 81579)

Technical Specifications

Parameter	Value
NSN	5340-00-623-5422
Primary Part Number	PM21816
Item Name	Bracket,main
FSC / FSG	5340 / 53 — No Item Name Available
Manufacturer	Mason Electric Co. Dba Mason Controls
Status	CANCELLED

Lifecycle & Compliance

Acquisition Status	CANCELLED
HAZMAT	No

⇄ Verified Substitutes 7

5310-00-275-1419 INTERCHANGEABLE

Nut,self-Locking,hexagon

5330-00-430-199140999-2614 INTERCHANGEABLE

Packing Assembly

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc

6625-00-492-9002 INTERCHANGEABLE

Slotted Line,coaxial

5961-01-020-457221816 INTERCHANGEABLE

Transistor

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids

6670-01-545-9808218-16 INTERCHANGEABLE

Weight Set,balance

Ohaus Corporation

4730-01-567-3785 INTERCHANGEABLE

Adapter and Flange Assembly

6630-01-592-25861023237 INTERCHANGEABLE

Lens,hematology Analyzer

Beckman Coulter Inc Div Us Customer Operations

Cross-Reference Index

Part Number	Manufacturer
21816	Amphenol Corp Div Amphenol Aerospace Operations (USA)
21816	Unison Industries Llc (USA)
PM21816	Unison Industries Llc (USA)
PM21816 PRIMARY	Mason Electric Co. Dba Mason Controls (USA)
21816 PRIMARY	Mason Electric Co. Dba Mason Controls (USA)
PM21816	Amphenol Corp Div Amphenol Aerospace Operations (USA)

Related Parts

5310-00-275-1419INTERCHANGEABLE

NUT,SELF-LOCKING,HEXAGON

5330-00-430-1991INTERCHANGEABLE

PACKING ASSEMBLY

40999-2614

6625-00-492-9002INTERCHANGEABLE

SLOTTED LINE,COAXIAL

5961-01-020-4572INTERCHANGEABLE

TRANSISTOR

21816

6670-01-545-9808INTERCHANGEABLE

WEIGHT SET,BALANCE

218-16

4730-01-567-3785INTERCHANGEABLE

ADAPTER AND FLANGE ASSEMBLY

6630-01-592-2586INTERCHANGEABLE

LENS,HEMATOLOGY ANALYZER

1023237

Frequently Asked Questions

What is NSN 5340-00-623-5422?

NSN 5340-00-623-5422 is a Bracket,main, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-623-5422?

NSN 5340-00-623-5422 has 6 cross-referenced part numbers: 21816 (Amphenol Corp Div Amphenol Aerospace Operations), 21816 (Unison Industries Llc), PM21816 (Unison Industries Llc), PM21816 (Mason Electric Co. Dba Mason Controls), 21816 (Mason Electric Co. Dba Mason Controls) and 1 more.

What NSN replaces 5340-00-623-5422?

There are 7 known substitutes for 5340-00-623-5422: 5310-00-275-1419, 5330-00-430-1991, 6625-00-492-9002 and 4 more. Verify interchangeability with system specifications before substitution.

Is NSN 5340-00-623-5422 still in active supply?

NSN 5340-00-623-5422 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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

PartsTable Design LLC · partstable.com