PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-F-21467Elbow,tube

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-012-3977 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-012-3977 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-012-3977. Primary manufacturer part number: MIL-F-21467.
Features
  • Elbow,tube — FSC 4730
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES SECOND END IN
  • Thread Quantity Per Inch: 12 SECOND END
  • Connection Type: THREADED EXTERNAL TUBE SECOND END
  • Surface Treatment Document and Classification: MIL-C-16232,TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES FIRST END IN
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Leg Length: 1.250 INCHES NOMINAL FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,tube, cataloged under National Stock Number 4730-01-012-3977, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4730-01-012-3977
Primary Part NumberMIL-F-21467
Item NameElbow,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nominal Outside Diameter Tube Accommodated0.750 INCHES SECOND END IN
Thread Quantity Per Inch12 SECOND END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Surface Treatment Document and ClassificationMIL-C-16232,TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Leg Length1.250 INCHES NOMINAL FIRST END IN
Nominal Thread Size1.062 INCHES FIRST END IN
Connection StylePLAIN (TUBE) SECOND END
Thread Series DesignatorUN FIRST END
Seat Angle37.0 DEGREES FIRST END
Thread Class2A SECOND END A
MaterialSTEEL OVERALL
Thread Series DesignatorUN SECOND END
Surface TreatmentPHOSPHATE OVERALL
Thread Quantity Per Inch12 FIRST END
Thread Class2A FIRST END A
Nominal Thread Size1.062 INCHES SECOND END IN
Leg Length1.594 INCHES NOMINAL SECOND END IN
Nondefinitive Spec/std Data7 FIGURE AND 12 TABLE
Flow Angle45.0 DEGREES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-466-7467 INTERCHANGEABLE
Locknut,tube Fitting
4730-00-727-9786 INTERCHANGEABLE
Elbow,tube
4730-00-800-1735 INTERCHANGEABLE
Tee,tube to Boss
4730-00-800-3121 INTERCHANGEABLE
Sleeve,clinch,tube Fitting
4730-00-800-3129 INTERCHANGEABLE
Sleeve,clinch,tube Fitting
4730-00-800-4790 INTERCHANGEABLE
Nut,tube Coupling
4730-00-801-3466 INTERCHANGEABLE
Nipple,tube
4730-00-849-9692 INTERCHANGEABLE
Tee,tube
4730-01-017-1246 INTERCHANGEABLE
Union,tube
4730-01-017-1457 INTERCHANGEABLE
Nut,tube Coupling
Cross-Reference Index
Part NumberManufacturer
MIL-F-21467 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
13207E4682-8 Cecom Lr Center (USA)
Related Parts
4730-00-466-7467INTERCHANGEABLE
LOCKNUT,TUBE FITTING
4730-00-727-9786INTERCHANGEABLE
ELBOW,TUBE
4730-00-800-1735INTERCHANGEABLE
TEE,TUBE TO BOSS
4730-00-800-3121INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING
4730-00-800-3129INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING
4730-00-800-4790INTERCHANGEABLE
NUT,TUBE COUPLING
4730-00-801-3466INTERCHANGEABLE
NIPPLE,TUBE
4730-00-849-9692INTERCHANGEABLE
TEE,TUBE
4730-01-017-1246INTERCHANGEABLE
UNION,TUBE
4730-01-017-1457INTERCHANGEABLE
NUT,TUBE COUPLING
4730-01-017-1458INTERCHANGEABLE
NUT,TUBE COUPLING
4730-01-020-7517INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING

Frequently Asked Questions

What is NSN 4730-01-012-3977?

NSN 4730-01-012-3977 is a Elbow,tube, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-012-3977?

NSN 4730-01-012-3977 has 2 cross-referenced part numbers: MIL-F-21467 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 13207E4682-8 (Cecom Lr Center).

What NSN replaces 4730-01-012-3977?

There are 12 known substitutes for 4730-01-012-3977: 4730-00-466-7467, 4730-00-727-9786, 4730-00-800-1735 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-F-21467?

Key specifications for MIL-F-21467: Nominal Outside Diameter Tube Accommodated: 0.750 INCHES SECOND END IN; Thread Quantity Per Inch: 12 SECOND END; Connection Type: THREADED EXTERNAL TUBE SECOND END; Surface Treatment Document and Classification: MIL-C-16232,TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 21 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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