PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7M51-12Sleeve,flared,tube Fitting

Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply · NSN 4730-00-984-3373 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-984-3373 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-984-3373. Primary manufacturer part number: 7M51-12.
Features
  • Sleeve,flared,tube Fitting — FSC 4730
  • Casehardening Indicator: NOT CASEHARDENED
  • Flange Outside Diameter: 0.972 INCHES NOMINAL IN
  • Sleeve Outside Diameter: 0.826 INCHES NOMINAL IN
  • Seat Angle in Deg: 33.000
  • Hose/tube Outside Diameter for Which Designed: 0.750 INCHES NOMINAL IN
  • Flange Width: 0.266 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Sleeve,flared,tube Fitting, cataloged under National Stock Number 4730-00-984-3373, 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 Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply. Government technical data includes 9 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
NSN4730-00-984-3373
Primary Part Number7M51-12
Item NameSleeve,flared,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAllan Aircraft Supply Co., Llc Dba Allan Aircraft Supply
StatusACTIVE
Casehardening IndicatorNOT CASEHARDENED
Flange Outside Diameter0.972 INCHES NOMINAL IN
Sleeve Outside Diameter0.826 INCHES NOMINAL IN
Seat Angle in Deg33.000
Hose/tube Outside Diameter for Which Designed0.750 INCHES NOMINAL IN
Flange Width0.266 INCHES NOMINAL IN
Surface TreatmentCADMIUM
MaterialSTEEL
Style DesignatorSLEEVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2530-00-949-00367M5112 INTERCHANGEABLE
Collar,vehicular
Caterpillar Inc Div Caterpillar Defense
4730-00-984-85227M51-16 INTERCHANGEABLE
Sleeve,flared,tube Fitting
The Boeing Company Div Defense
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
7M51-12 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
7M51 The Boeing Company Div Defense (USA)
7M51-12 PRIMARY Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA)
7M51-12 PRIMARY Sps Technologies, Llc Dba Airdrome Precision Components (USA)
7M51-12 Crown Fitting Co Inc (USA)
7M51-12 PRIMARY The Boeing Company Div Defense (USA)
7M51-12 PRIMARY Nelson Aero Space, Inc. (USA)
7M51-12 Bailey Hose Inc (USA)
Related Parts
2530-00-949-0036INTERCHANGEABLE
COLLAR,VEHICULAR
7M5112
4730-00-984-8522INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
7M51-16
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 4730-00-984-3373?

NSN 4730-00-984-3373 is a Sleeve,flared,tube Fitting, manufactured by Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-984-3373?

NSN 4730-00-984-3373 has 8 cross-referenced part numbers: 7M51-12 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), 7M51 (The Boeing Company Div Defense), 7M51-12 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply), 7M51-12 (Sps Technologies, Llc Dba Airdrome Precision Components), 7M51-12 (Crown Fitting Co Inc) and 3 more.

What NSN replaces 4730-00-984-3373?

There are 5 known substitutes for 4730-00-984-3373: 2530-00-949-0036, 4730-00-984-8522, 4730-01-089-6503 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7M51-12?

Key specifications for 7M51-12: Overall Length: 0.688 INCHES NOMINAL IN; Casehardening Indicator: NOT CASEHARDENED; Flange Outside Diameter: 0.972 INCHES NOMINAL IN; Sleeve Outside Diameter: 0.826 INCHES NOMINAL IN. 10 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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