PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51072Adapter,cartridge

American Optical Co · NSN 4240-01-250-8972 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-250-8972 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-250-8972. Primary manufacturer part number: 51072.
Features
  • Adapter,cartridge — FSC 4240
  • Criticality Code Justification: TEXT
  • General Characteristics Item Description: SOLE SOURCE REQUIRED BY STATUTE 6.302
  • 6 verified cross-references
  • Primary manufacturer: American Optical Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,cartridge, cataloged under National Stock Number 4240-01-250-8972, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is American Optical Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-250-8972
Primary Part Number51072
Item NameAdapter,cartridge
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerAmerican Optical Co
StatusACTIVE
Criticality Code JustificationTEXT
General Characteristics Item DescriptionSOLE SOURCE REQUIRED BY STATUTE 6.302
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5930-00-367-6788D17438 INTERCHANGEABLE
Switch
Siemens Energy and Automation Inc Siemens Furnas Controls Div
5330-00-632-89866785396 INTERCHANGEABLE
Seal,turbine Vane a
Rolls-Royce Corporation
5935-00-798-230633-5107-2 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
2920-00-820-4578 INTERCHANGEABLE
Spark Plug
1005-00-869-88407791937 INTERCHANGEABLE
Housing,deflection
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5365-00-876-0307 INTERCHANGEABLE
Spacer,ring
5325-00-962-537310630000-45 INTERCHANGEABLE
Eyelet,metallic
Us Army Aviation and Missile Command
5120-01-193-6320 INTERCHANGEABLE
Socket,socket Wrench
2940-01-267-2658 INTERCHANGEABLE
Filter Element,fluid
6625-01-373-656451072 INTERCHANGEABLE
Detector,radio Frequency
Boonton Electronics Corporation Div Boonton Electronics
Cross-Reference Index
Part NumberManufacturer
51072 American Optical Co (USA)
R44 Aearo Company 1 Dba Aearo Div Ao Safety Occupational Prescription Eyewear (USA)
R44 3m Company (USA)
51072 Aearo Company (USA)
R44 American Optical Co (USA)
R44 Aearo Company (USA)
Related Parts
5930-00-367-6788INTERCHANGEABLE
SWITCH
D17438
5330-00-632-8986INTERCHANGEABLE
SEAL,TURBINE VANE A
6785396
5935-00-798-2306INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
33-5107-2
2920-00-820-4578INTERCHANGEABLE
SPARK PLUG
1005-00-869-8840INTERCHANGEABLE
HOUSING,DEFLECTION
7791937
5365-00-876-0307INTERCHANGEABLE
SPACER,RING
5325-00-962-5373INTERCHANGEABLE
EYELET,METALLIC
10630000-45
5120-01-193-6320INTERCHANGEABLE
SOCKET,SOCKET WRENCH
2940-01-267-2658INTERCHANGEABLE
FILTER ELEMENT,FLUID
6625-01-373-6564INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
51072
6230-01-669-4880INTERCHANGEABLE
FLASHLIGHT
51072

Frequently Asked Questions

What is NSN 4240-01-250-8972?

NSN 4240-01-250-8972 is a Adapter,cartridge, manufactured by American Optical Co, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-250-8972?

NSN 4240-01-250-8972 has 6 cross-referenced part numbers: 51072 (American Optical Co), R44 (Aearo Company 1 Dba Aearo Div Ao Safety Occupational Prescription Eyewear), R44 (3m Company), 51072 (Aearo Company), R44 (American Optical Co) and 1 more.

What NSN replaces 4240-01-250-8972?

There are 11 known substitutes for 4240-01-250-8972: 5930-00-367-6788, 5330-00-632-8986, 5935-00-798-2306 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51072?

Key specifications for 51072: Criticality Code Justification: TEXT; General Characteristics Item Description: SOLE SOURCE REQUIRED BY STATUTE 6.302; End Item Identification: AMERICAN OPTICAL SERIES R2090,R4000,R5000,R6000,R7000 AND 5 STAR RESPIRATOR. 3 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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