PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A40Sleeve,flared,tube Fitting

Sae International Dba Sae International · NSN 4730-01-733-4553 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-733-4553 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-733-4553. Primary manufacturer part number: A40.
Features
  • Sleeve,flared,tube Fitting — FSC 4730
  • Sleeve Outside Diameter: 2.887 INCHES MAXIMUM IN
  • Specification/standard Data: AS1654A40 INTERNATIONAL STD/SPEC
  • Surface Treatment: ANODIZE
  • Hose/tube Outside Diameter for Which Designed: 2.50 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY
  • Nondefinitive Spec/std Data: AS1654 DRAWING NUMBER
  • 3 verified cross-references
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy construction
General Description

The Sleeve,flared,tube Fitting, cataloged under National Stock Number 4730-01-733-4553, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-733-4553
Primary Part NumberA40
Item NameSleeve,flared,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Sleeve Outside Diameter2.887 INCHES MAXIMUM IN
Specification/standard DataAS1654A40 INTERNATIONAL STD/SPEC
Surface TreatmentANODIZE
Hose/tube Outside Diameter for Which Designed2.50 INCHES NOMINAL IN
MaterialALUMINUM ALLOY
Nondefinitive Spec/std DataAS1654 DRAWING NUMBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
8040-00-081-2166 INTERCHANGEABLE
Adhesive
3030-00-115-0013 INTERCHANGEABLE
Belt,v
3455-00-187-2633 INTERCHANGEABLE
Blade,hole Saw
3455-00-228-5218171621 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
8040-00-270-8136 INTERCHANGEABLE
Adhesive
2815-00-364-509868569 INTERCHANGEABLE
Valve,poppet,engine
Cummins Inc.
9330-00-478-6164 INTERCHANGEABLE
Plastic Sheet
2240-00-505-4775 INTERCHANGEABLE
Wheel,railway
5360-00-522-9529A-40 INTERCHANGEABLE
Spring,helical,compression
Essex Industries, Inc. Dba Essex Industries
8040-00-691-1322 INTERCHANGEABLE
Adhesive
Cross-Reference Index
Part NumberManufacturer
AS1654 Sae International Dba Sae International (USA)
AS1654A40 Sae International Dba Sae International (USA)
A40 PRIMARY Sae International Dba Sae International (USA)
Related Parts
8040-00-081-2166INTERCHANGEABLE
ADHESIVE
3030-00-115-0013INTERCHANGEABLE
BELT,V
3455-00-187-2633INTERCHANGEABLE
BLADE,HOLE SAW
3455-00-228-5218INTERCHANGEABLE
CUTTER,MILLING,END
171621
8040-00-270-8136INTERCHANGEABLE
ADHESIVE
2815-00-364-5098INTERCHANGEABLE
VALVE,POPPET,ENGINE
68569
9330-00-478-6164INTERCHANGEABLE
PLASTIC SHEET
2240-00-505-4775INTERCHANGEABLE
WHEEL,RAILWAY
5360-00-522-9529INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A-40
8040-00-691-1322INTERCHANGEABLE
ADHESIVE
4730-01-214-0258INTERCHANGEABLE
PLUG,TUBE FITTING,THREADED
169088-1
5120-01-264-2388INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 4730-01-733-4553?

NSN 4730-01-733-4553 is a Sleeve,flared,tube Fitting, manufactured by Sae International Dba Sae International, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-733-4553?

NSN 4730-01-733-4553 has 3 cross-referenced part numbers: AS1654 (Sae International Dba Sae International), AS1654A40 (Sae International Dba Sae International), A40 (Sae International Dba Sae International).

What NSN replaces 4730-01-733-4553?

There are 12 known substitutes for 4730-01-733-4553: 8040-00-081-2166, 3030-00-115-0013, 3455-00-187-2633 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A40?

Key specifications for A40: End Item Identification: AIR CONDITIONER, AIR CYCLE; Part Name Assigned by Controlling Agency: SLEEVE, THREADLESS-FLEXIBLE, FIXED CAVITY; Sleeve Outside Diameter: 2.887 INCHES MAXIMUM IN; Specification/standard Data: AS1654A40 INTERNATIONAL STD/SPEC. 9 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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