PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21251-5LTurnbuckle Body

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-00-067-9879 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-067-9879 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-067-9879. Primary manufacturer part number: MS21251-5L.
Features
  • Turnbuckle Body — FSC 5340
  • Body Style: ROUND BODY W/LOCKING DEVICE
  • Surface Treatment: CADMIUM OVERALL
  • Thread Series Designator: UNF BODY
  • Nominal Thread Size: 0.250 INCHES BODY IN
  • Body Length: 3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN
  • Thread Class: 3B BODY
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Applications requiring Steel Comp 8630 or Steel Comp 4130 Overall construction
General Description

The Turnbuckle Body, cataloged under National Stock Number 5340-00-067-9879, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-067-9879
Primary Part NumberMS21251-5L
Item NameTurnbuckle Body
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Body StyleROUND BODY W/LOCKING DEVICE
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNF BODY
Nominal Thread Size0.250 INCHES BODY IN
Body Length3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN
Thread Class3B BODY
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Length4.000 INCHES NOMINAL OVERALL IN
Thread DirectionRIGHT-HAND OVERALL
Material Document and ClassificationMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 8630 OR STEEL COMP 4130 OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
No Item Name Available
Turnbuckle Body
Connector,rod End
Cross-Reference Index
Part NumberManufacturer
MS21251-5L Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-8878 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
941.93.41.616 Pilatus Aircraft Ltd (CHE)
Related Parts
5340-00-201-1165SUCCESSOR
NO ITEM NAME AVAILABLE
5340-00-067-9875SUCCESSOR
TURNBUCKLE BODY
5340-00-069-0599SUCCESSOR
CONNECTOR,ROD END

Frequently Asked Questions

What is NSN 5340-00-067-9879?

NSN 5340-00-067-9879 is a Turnbuckle Body, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-067-9879?

NSN 5340-00-067-9879 has 3 cross-referenced part numbers: MS21251-5L (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-8878 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 941.93.41.616 (Pilatus Aircraft Ltd).

What NSN replaces 5340-00-067-9879?

There are 3 known substitutes for 5340-00-067-9879: 5340-00-201-1165, 5340-00-067-9875, 5340-00-069-0599. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21251-5L?

Key specifications for MS21251-5L: Body Style: ROUND BODY W/LOCKING DEVICE; Surface Treatment: CADMIUM OVERALL; Thread Series Designator: UNF BODY; Nominal Thread Size: 0.250 INCHES BODY IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-067-9879 still in active supply?

NSN 5340-00-067-9879 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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