PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7M51-16Sleeve,flared,tube Fitting

The Boeing Company Div Defense · NSN 4730-00-984-8522 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-984-8522 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-984-8522. Primary manufacturer part number: 7M51-16.
Features
  • Sleeve,flared,tube Fitting — FSC 4730
  • Seat Angle in Deg: 33.0
  • Hose/tube Outside Diameter for Which Designed: 1.000 INCHES NOMINAL IN
  • Metallic Hardness Rating: 35.0 MINIMUM ROCKWELL C AND 40.0 MAXIMUM ROCKWELL C
  • Sleeve Outside Diameter: 1.081 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM AND CHROMATE
  • Material: STEEL COMP 4130 OR STEEL COMP 4140
  • Style Designator: SLEEVE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 4130 or Steel Comp 4140 construction
General Description

The Sleeve,flared,tube Fitting, cataloged under National Stock Number 4730-00-984-8522, 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 The Boeing Company Div Defense. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-984-8522
Primary Part Number7M51-16
Item NameSleeve,flared,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Seat Angle in Deg33.0
Hose/tube Outside Diameter for Which Designed1.000 INCHES NOMINAL IN
Metallic Hardness Rating35.0 MINIMUM ROCKWELL C AND 40.0 MAXIMUM ROCKWELL C
Sleeve Outside Diameter1.081 INCHES NOMINAL IN
Surface TreatmentCADMIUM AND CHROMATE
MaterialSTEEL COMP 4130 OR STEEL COMP 4140
Style DesignatorSLEEVE
Flange Outside Diameter1.222 INCHES NOMINAL IN
Flange Width0.281 INCHES NOMINAL IN
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2530-00-918-357301123 INTERCHANGEABLE
Roller and Shaft As
Intertractor America Corp
4730-00-984-33737M51-12 INTERCHANGEABLE
Sleeve,flared,tube Fitting
Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply
4730-01-089-65037M51-8 INTERCHANGEABLE
Sleeve,flared,tube Fitting
The Boeing Company Div Defense
4730-01-189-34357M51-6 INTERCHANGEABLE
Sleeve,flared,tube Fitting
The Boeing Company Div Defense
5331-01-469-82427M 51 INTERCHANGEABLE
O-Ring
Oerlikon Metco Us Inc
Cross-Reference Index
Part NumberManufacturer
7M51-16 Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA)
7M51 The Boeing Company Div Defense (USA)
7M51-16 Sps Technologies, Llc Dba Airdrome Precision Components (USA)
7M51-16 PRIMARY The Boeing Company Div Defense (USA)
7M51-16 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
7M51-16 Crown Fitting Co Inc (USA)
7M51-16 Bailey Hose Inc (USA)
7M51-16 Nelson Aero Space, Inc. (USA)
Related Parts
2530-00-918-3573INTERCHANGEABLE
ROLLER AND SHAFT AS
01123
4730-00-984-3373INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
7M51-12
4730-01-089-6503INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
7M51-8
4730-01-189-3435INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
7M51-6
5331-01-469-8242INTERCHANGEABLE
O-RING
7M 51

Frequently Asked Questions

What is NSN 4730-00-984-8522?

NSN 4730-00-984-8522 is a Sleeve,flared,tube Fitting, manufactured by The Boeing Company Div Defense, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-984-8522?

NSN 4730-00-984-8522 has 8 cross-referenced part numbers: 7M51-16 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply), 7M51 (The Boeing Company Div Defense), 7M51-16 (Sps Technologies, Llc Dba Airdrome Precision Components), 7M51-16 (The Boeing Company Div Defense), 7M51-16 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company) and 3 more.

What NSN replaces 4730-00-984-8522?

There are 5 known substitutes for 4730-00-984-8522: 2530-00-918-3573, 4730-00-984-3373, 4730-01-089-6503 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7M51-16?

Key specifications for 7M51-16: Seat Angle in Deg: 33.0; Hose/tube Outside Diameter for Which Designed: 1.000 INCHES NOMINAL IN; Metallic Hardness Rating: 35.0 MINIMUM ROCKWELL C AND 40.0 MAXIMUM ROCKWELL C; Sleeve Outside Diameter: 1.081 INCHES NOMINAL IN. 11 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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