PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PM-21733Bracket

Mason Electric Co. Dba Mason Controls · NSN 5340-01-156-4221 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-156-4221 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-156-4221. Primary manufacturer part number: PM-21733.
Features
  • Bracket — FSC 5340
  • 4 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, cataloged under National Stock Number 5340-01-156-4221, 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBracket
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersSatair A/s (CAGE R1120); Amphenol Corp Div Amphenol Aerospace Operations (CAGE 77820); Mason Electric Co. Dba Mason Controls (CAGE 81579); Unison Industries Llc (CAGE 59501)
Technical Specifications
ParameterValue
NSN5340-01-156-4221
Primary Part NumberPM-21733
Item NameBracket
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6620-00-166-679421733 INTERCHANGEABLE
Case,bakelite
Liftec Inc Div Liftec, Inc.
2590-00-659-690709-21733 INTERCHANGEABLE
Control Assembly,push-Pull
Tvh Parts Co.
3120-00-804-4472F52606-406 INTERCHANGEABLE
Bushing,sleeve
The Boeing Company Div Defense
6610-00-919-748621733 INTERCHANGEABLE
Bridge Assy
Aerosonic Llc
6550-01-298-7456221733 INTERCHANGEABLE
Culture Medium,anaerobic Cdc Blo
Becton, Dickinson and Company Dba Becton Dickinson & Co
6695-01-424-849639938 INTERCHANGEABLE
Indicator Assembly
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Cross-Reference Index
Part NumberManufacturer
PM-21733 Satair A/s (DNK)
21733 Amphenol Corp Div Amphenol Aerospace Operations (USA)
PM-21733 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
PM-21733 Unison Industries Llc (USA)
Related Parts
6620-00-166-6794INTERCHANGEABLE
CASE,BAKELITE
21733
2590-00-659-6907INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
09-21733
3120-00-804-4472INTERCHANGEABLE
BUSHING,SLEEVE
F52606-406
6610-00-919-7486INTERCHANGEABLE
BRIDGE ASSY
21733
6550-01-298-7456INTERCHANGEABLE
CULTURE MEDIUM,ANAEROBIC CDC BLO
221733
6695-01-424-8496INTERCHANGEABLE
INDICATOR ASSEMBLY
39938

Frequently Asked Questions

What is NSN 5340-01-156-4221?

NSN 5340-01-156-4221 is a Bracket, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-156-4221?

NSN 5340-01-156-4221 has 4 cross-referenced part numbers: PM-21733 (Satair A/s), 21733 (Amphenol Corp Div Amphenol Aerospace Operations), PM-21733 (Mason Electric Co. Dba Mason Controls), PM-21733 (Unison Industries Llc).

What NSN replaces 5340-01-156-4221?

There are 6 known substitutes for 5340-01-156-4221: 6620-00-166-6794, 2590-00-659-6907, 3120-00-804-4472 and 3 more. Verify interchangeability with system specifications before substitution.

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